• and two positively giant indoor air purifiers - the Dyson Purifier Big+Quiet Formaldehyde and the Dyson Purifier HEPA Big+Quiet Formaldehyde. (theverge.com)
  • The new Vis Nav robo vac, Big+Quiet air purifiers, Gen5detect and V15s Detect Submarine vacuums. (theverge.com)
  • You'll find vacuums and air purifiers in different models for hundreds of dollars off, so don't think twice before checking your next big-ticket shopping item off the list. (apartmenttherapy.com)
  • This morning (in Singapore, at least), the company announced a revamp of its vacuum and air purifiers. (techcrunch.com)
  • Get up to 70% off kitchen appliances, vacuums, air purifiers and more. (etonline.com)
  • We find in files exceptional air purifiers like the Ionic Breeze and on Television the Ore XL home air purifier. (leadingroutecars.com)
  • Are you looking for the best Industrial Compressed Air Vacuum Cleaners? (johnharvards.com)
  • We've listed our top-ranked picks, including the top-selling Industrial Compressed Air Vacuum Cleaners. (johnharvards.com)
  • Built into air filtration devices and vacuum cleaners, they are effective and reliable in removing viruses, bacteria, fungi and germs. (kaercher.com)
  • They are classified in accordance with the EN 1822:2019 standard for particle filters and are built into Kärcher dry vacuum cleaners and air filters. (kaercher.com)
  • Pure vacuum cleaners have a strong suction force, allowing them to lift heavy trash or debris stuck in small spaces. (stewart-amos.com)
  • In the case of robotic vacuum cleaners, consumers want to be confident that a robot can effectively remove allergens such as dust mite and cat allergen from flooring. (allergystandards.com)
  • Robotic vacuum cleaners that are certified asthma & allergy friendly ® are tested to the ASP:03-09/101 Certification Standard. (allergystandards.com)
  • The Certification Standard utilizes innovative scientific methods to assess the impact of robotic vacuum cleaners on the indoor environment. (allergystandards.com)
  • Robotic vacuum cleaners that pass certification testing are granted a certificate stating that the particular robotic vacuum cleaner meets the requirements of the asthma & allergy friendly ® ASP:03-09/101 Certification Standard. (allergystandards.com)
  • Vacuum cleaner airflow decrease had a range of 3 to 0.4 ft3/min (0.08 to 0.01 m3/sec2) over a range of vacuum cleaners, hose diameters, and hose lengths. (cdc.gov)
  • Effective April 2023, the Air Cadet Vacuum/Pressure Pump has now been rebranded Cole-Parmer under model number VP-200. (coleparmer.com)
  • The newest Dyson vacs, the Gen5detect and Gen5outsize, are cordless vacuums with the fifth generation of Dyson's Hyperdymium motor . (theverge.com)
  • As for manual vacuums, there's the Gen5detect and Gen5outsize cordless unites, which have improved filtration systems and a battery the company says will last up to 70 minutes on a charge. (techcrunch.com)
  • Also new are the Dyson V15s Detect Submarine and Dyson V12s Detect Slim Submarine vacuums, which have wet rollers for hard floors. (techcrunch.com)
  • The company also announced a new wet vac, the latest generation of Dyson's cordless vacuums, and a very big air purifier. (theverge.com)
  • The Dyson Purifier Big+Quiet Formaldehyde air purifier, meanwhile, has a 360-degtree particle filter the company says will trap up to 99.95% of pollutants. (techcrunch.com)
  • I recommend that the Ore Dust extractor Company, which was nearly crushed in the Hurricane Katrina, develop the may cottage buy and Air Purifier which will vacuum like the robot Rumba, yet moreover clean the air simultaneously. (leadingroutecars.com)
  • The high quality HEPA filter in the vacuum cleaner could be washed with running water. (johnharvards.com)
  • HEPA filters have already been in use for decades in many medical and bioscience facilities to reduce the spread of particles and organisms in the air. (kaercher.com)
  • As a market leader in innovative cleaning solutions, Kärcher has succeeded in combining the superior filter qualities of HEPA 14 filters (DIN EN 1822:2019) with high-performance products, thereby making a substantial contribution towards greater safety in enclosed rooms. (kaercher.com)
  • H igh E fficiency P articulate A ir filter" - or HEPA for short - refers to highly efficient filters which remove and trap even the smallest particles and suspended matter from the air, such as germs, bacteria, viruses, spores, pollen and mites. (kaercher.com)
  • Illustrative example of a HEPA 14 filter - built into a Kärcher T 11/1 Classic HEPA dry vacuum cleaner. (kaercher.com)
  • HEPA 14 filters use basic principles of physics, such as adhesive force and Brownian motion, to filter out even the smallest particles reliably from the air flow. (kaercher.com)
  • A high-efficiency particulate air (HEPA) filter to reduce the chances of releasing dust containing RCS from the vacuum into the worksite. (cdc.gov)
  • POWERFUL MINI VACUUM CLEANER] PeroBuno mini car vacuum can help you solve hard-to-reach problems easily and get rid of tangled and bulky cords. (johnharvards.com)
  • ColorCoral Vacuum Dust Cleaner Rechargeable Computer Vacuum Keyboard Cleaner for Keyboard Dusting. (johnharvards.com)
  • ColorCoral computer vacuum cleaner was designed to remove dust, hair and crumbs from your desk, carpet, sofa, computer and your. (johnharvards.com)
  • Strong suction power, the vacuum keyboard cleaner has 60W power, it could easily pick up the crumbs, beans and even screws. (johnharvards.com)
  • ColorCoral provide two nozzles for this portable vacuum cleaner. (johnharvards.com)
  • Compressed Air Duster & Small Vacuum Cleaner 2-in-1, PC Air Duster Electric, USB Rechargeable. (johnharvards.com)
  • Rechargeable Computer Keyboard Electronics Cleaner】This electric air duster comes with 6000mAh rechargeable batteries, offering you with 10W fast. (johnharvards.com)
  • A tangible decrease in suction power in the vacuum cleaner or air filter is an indication that the filter needs to be changed or cleaned. (kaercher.com)
  • The easily exchangeable polyester exhaust filter is an ideal accessory for the Kärcher AD 4 Premium ash and dry vacuum cleaner. (kaerchershop-schreiber.de)
  • Our robotic vacuum cleaner standard is one of over 51 standards in the asthma & allergy friendly ® Certification Program, covering appliances, bedding products, air filters, building products, and services that can have an impact on the indoor air environment. (allergystandards.com)
  • You can explore the robotic vacuum cleaner standard in more detail using the menu on the left, or use the links above to explore other standards. (allergystandards.com)
  • The result, more clean air delivered faster and more efficiently than any other air cleaner on the market. (bestvacuum.com)
  • provided your Austin air cleaner was operated under normal residential use and that you have completed and returned your warranty registration to Austin Air Systems. (bestvacuum.com)
  • The hood is connected to an industrial vacuum cleaner by a flexible hose. (cdc.gov)
  • The vacuum cleaner produces suction to capture the dust at its source. (cdc.gov)
  • If the vacuum cleaner does not have a pressure gauge, workers can monitor the air flow by checking to see if a dust plume is escaping from around the shroud. (cdc.gov)
  • Using a portable air cleaner or creating a cleaner air room in the home . (cdc.gov)
  • Going to a designated cleaner air shelter (such as a school gymnasium, buildings at public fairgrounds, or a civic auditorium) during times of poor air quality. (cdc.gov)
  • To reduce the risk of silicosis among these workers, a vacuum cleaner can be used to exhaust 80 ft3/min (2.26 m3/min) from a hood mounted on the grinder. (cdc.gov)
  • Vacuum cleaner airflows were obtained by measuring and digitally logging vacuum cleaner static pressure at the inlet to the vacuum cleaner motor. (cdc.gov)
  • Worker activities were video taped concurrent with aerosol photometer measurement of dust exposure and vacuum cleaner static pressure as a measure of airflow. (cdc.gov)
  • We specialize in vane compressor technology which offers an alternative to other technologies used in in air compressors and vacuum pumps. (techem.com.pl)
  • Pneumofore was founded in 1923 and is a manufacturer of compressors and vacuum pumps, with an extensive experience in the production and development of custom designs, well-adjusted to the changing requirements of the company's customers. (techem.com.pl)
  • High-capacity rotary screw air compressor, providing up to 157 CFM at up to 217 psig, is ideal for use with Nitrogen Generators. (terrauniversal.com)
  • All vacuum pump air compressor wholesalers & vacuum pump air compressor manufacturers come from members. (futurenowinc.com)
  • We doesn't provide vacuum pump air compressor products or service, please contact them directly and verify their companies info carefully. (futurenowinc.com)
  • 12 Amp Mini Air Compressor AC Contactor Electrically Controlled Switch A Contactor is an electrically controlled switch used for switching a power circuit, similar to a relay except with higher current ratings, which is controlled by a circuit which has. (futurenowinc.com)
  • The Department of compressed air and vacuum also offers air purification equipment, including line filters, refrigerant dryers and adsorption dryers, cyclone separators, radiators, containers, and of pneumatic fittings, necessary for the operation of any compressor system. (techem.com.pl)
  • Its broad and complete range of compressor, vacuum and blower products and services, along with its application expertise and over 160 years of engineering heritage, allows Gardner Denver to provide differentiated product and service offerings for its customers' specific uses. (gardnerdenver.com)
  • MELVILLE, New York - (January 29, 2014) - Air Techniques, Inc., a leading innovator and manufacturer of dental equipment is excited to announce The Oldest Air Tech Air Compressor and Vacuum System contest. (airtechniques.com)
  • The dental office with the oldest Air Tech compressor in North America will win a new AirStar compressor complete with monitoring system so you and your service tech can keep watch on your dental air system from nearly anywhere - from your front desk, your office or your home. (airtechniques.com)
  • The Dyson 360 Vis Nav is the company's first robot vacuum available in the US since the short-lived Dyson 360 Eye. (theverge.com)
  • Now, Dyson is introducing the Dyson 360 Vis Nav robot vacuum. (theverge.com)
  • The new Dyson robot vacuum is still blue. (theverge.com)
  • There's no option of mopping or self-emptying, which we've seen on a lot of new robot vacuums today , nor does it appear to have AI-powered obstacle avoidance (just regular debris dodging). (theverge.com)
  • But Dyson says the Vis Nav has twice the suction power of any other robot vacuum and a "high-level processor" that "thinks and adapts" to the data it collects from 26 sensors to avoid obstacles, detect dust, and find walls. (theverge.com)
  • Of course, Dyson is known for its regular vacuums, which are still a necessity even if you have a robot vacuum - robot vacuums still can't do stairs. (theverge.com)
  • The list includes a new robot vacuum, the Dyson 360 Vis Nav, which it says has "twice the suction of any other" robot vacuum. (techcrunch.com)
  • It's shown off some early concepts for home robots, but thus far, robot vacuums continue to be its biggest play in the space. (techcrunch.com)
  • Request the right vacuum equipment, for example vacuum pumps, leak detectors or mass spectrometers, directly from you sales engineer. (pfeiffer-vacuum.com)
  • Oil-free and noiseless operation makes this motor-mounted unit one of the best suited vacuum pumps available for cleanroom environments. (terrauniversal.com)
  • 7903-00 displayed Diaphragm Vacuum/Pressure Pump Oil-free and quitet operation makes this economical, motor-mounted unit one of the best suited vacuum pumps for cleanroom use. (terrauniversal.com)
  • 7906-29 displayed Oil-Free Dry Pumps Oil-Free (Dry) Vacuum Pump provides clean operation and deep vacuum capability for versatile, low-maintenance cleanroom or laboratory uses. (terrauniversal.com)
  • This item is in the category Business & Industrial\Hydraulics , Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Other Vacuum Pumps. (glassartcanada.ca)
  • Single-head vacuum pumps are economically priced and can handle many tough vacuum/pressure applications. (coleparmer.com)
  • Our offer is further complemented by the work of the technical department, offering - in addition to warranty and post-warranty servicing of compressors and pumps - designing, measurement and installation services in the field of compressed air and vacuum systems. (techem.com.pl)
  • Guardair Pneumatic Vacuum N551BC 55 Gallon Drum Complete Kit with B Venturi Head, 2-Inch Hose and. (johnharvards.com)
  • Compressed air vacuums, ideal for a wide range of markets and applications, the 705 Series of air vacuums uses compressed air and the venturi principle to create a vacuum of exceptionally high flow and high static lift. (minutemanintl.com)
  • SEAMLESS EFFICIENT DESIGN] This cordless air duster has three different nozzles, one for blower mode, one for vacuum mode and another one for food. (johnharvards.com)
  • Air Blower & Mini Vacuum 2-in-1】Addoped to advanced 2-in-1 technology of blowing and suction. (johnharvards.com)
  • ID Fans removes flue gases from the combustion chambers and creates a vacuum of negative air pressure with a blower to suck the air out of the combustion chamber. (futurenowinc.com)
  • The conveyors were engineered with a PD pump or regenerative blower to create vacuum without the need for plant air. (chemicalprocessing.com)
  • If a high-efficiency air filter is not available, make sure the person vacuuming wears a respirator (such as an N95). (cdc.gov)
  • Portable & Multipurpose】Since this air dust is cordless and compact, you can carry it anywhere for multipurpose cleaning. (johnharvards.com)
  • Everything from viral coffee makers and air fryers to cordless vacuums is currently majorly marked down for the three-day weekend. (etonline.com)
  • Counseling patients on protective measures, including being aware of current and predicted air quality levels, staying indoors, using air filtration , and using properly fitted N95 respirators when outdoors is also important for mitigating adverse effects. (cdc.gov)
  • According to fluid dynamics, when the air flow changes direction due to an obstacle (fibre), the inertia of the heavy particle ensures that the particle maintains its trajectory, hits the fibre and sticks to it. (kaercher.com)
  • A small particle therefore follows the air flow as it moves around the obstacle (fibre). (kaercher.com)
  • Use a freestanding indoor air filter with particle removal to help protect people with heart disease, asthma or other respiratory conditions and the elderly and children from the effects of wildfire smoke. (cdc.gov)
  • KAESER, one of the world's leading manufacturers and suppliers for compressed air products and services, is at HANNOVER MESSE 2017 to showcase its mobile compressors specially designed for use on construction sites. (hannovermesse.de)
  • Analog Dreams by Andreas Haberlin for Vacuum Pro by AIR Music Technology is Soundware (samples or presets that load into other products) for macOS and Windows. (kvraudio.com)
  • Manufacturing products made from rubber materials often requires adjustments to pressure and vacuum. (proportionair.com)
  • Hapman's vacuum conveyors move products vertically, horizontally, around corners, on multiple levels and long distances with minimal operator attention or maintenance. (chemicalprocessing.com)
  • Do not smoke tobacco or other products, because smoking puts even more pollution into the air. (cdc.gov)
  • VAC-EX-AV-25SS Air Powered Dry Hazardous Area Vacuum, grounded air supply hose, anti-static filter. (goodway.com)
  • A 2-inch diameter hose with a smooth interior and a length of no more than 15 feet provides adequate air flow to capture and transport the dust. (cdc.gov)
  • Air/vacuum valve, fully automatic float operated, sizes 13mm (1/2") through 500mm (20"), suited for pressures up to 5100kPa (740 psig) in clean or raw water service. (roadauthority.com)
  • In all cases, the vacuum valve is up and at the feet of the casualty. (wikipedia.org)
  • The air is pumped until the mattress is rigid, then the valve is closed and the straps are fastened. (wikipedia.org)
  • Air pressure is then released by opening the thumb valve. (cdc.gov)
  • A suction valve or vacuum pump may be malfunctioning. (msdmanuals.com)
  • High Pressure】MECO Compressed Air blows immediate and continuous high-pressure air to clean dust debris and dirt away from any Electronic device. (johnharvards.com)
  • Vacuum and regenerative air sweepers use suction to remove debris and dirt from surfaces. (stewart-amos.com)
  • Most pure vacuum sweepers are designed to clean a width of about three feet, where most debris usually collects on a road. (stewart-amos.com)
  • They spray the water onto the debris as the vacuum pulls it in or onto the full hopper to stop the particles from leaving the system. (stewart-amos.com)
  • Vacuum heads tend to be about 8 inches and rely on brooms and brushes to sweep debris and trash toward the vacuum head. (stewart-amos.com)
  • Unlike pure vacuum sweepers, regenerative air sweepers use air in a closed circuit to displace and suck up debris on various surfaces. (stewart-amos.com)
  • The carefully controlled and directed air blasts dislodge debris, making it easier to suck into the machines. (stewart-amos.com)
  • Regenerative air sweepers have a wider cleaning path and can pull up large debris and fine particles. (stewart-amos.com)
  • As regenerative air sweepers rely on blasts of air to dislodge debris before vacuuming, they can clean hard-to-reach areas. (stewart-amos.com)
  • In accordance with Brownian motion, the smallest particles in the air flow constantly collide with other gas molecules and constantly change direction, much like the ball in a pinball machine. (kaercher.com)
  • Although not every community measures the amount of particles in the air, some communities in the western United States have guidelines to help people estimate air quality based on how far they can see. (cdc.gov)
  • Hapman's new expanded line of vacuum conveyors conveys powders, granules, flakes and pellets up to 18,000 pounds per hour. (chemicalprocessing.com)
  • Unlike other vacuum gauges currently on the market, the DVG-64A maintains working accuracy even when the sensor is contaminated with oil or similar contaminants. (omega.com)
  • We know how it spreads and have learned the difference between droplets and aerosols, and that aerosols accumulate and concentrate in indoor air - not to mention direct infection when breathing in. (kaercher.com)
  • This also means that the lower the virus concentration in indoor air, the lower the risk of infection. (kaercher.com)
  • On average, people spend up to 90% of their time indoors, and indoor air can be two and a half times as polluted as outdoor air. (allergystandards.com)
  • Indoor Air Quality is of particular concern for those affected by asthma and allergies, but a healthier home is of broader benefit to all. (allergystandards.com)
  • The Department of Compressed Air and Vacuum Systems operates within the framework of our company since its inception in 1990. (techem.com.pl)
  • Many newer models of vacuum sweepers are starting to incorporate water systems to help control the dust and other fine particles the sweeper emits. (stewart-amos.com)
  • Vacuum sweepers produce less dust than mechanical sweeping methods, even in systems without water suppression systems. (stewart-amos.com)
  • While most vacuum sweepers use water suppression systems to control dust and particles entering and leaving the machine, they can re-release a considerable amount of particles and dust into the air. (stewart-amos.com)
  • They still regularly hear from dentists who have their AirStar compressors or VacStar vacuum systems (or their predecessors) that were purchased and installed many, many years ago-but are still hard at work today. (airtechniques.com)
  • And Air Tech wants to reward those dentists who have these long-running compressors and vacuum systems, and the service technicians who keep them running. (airtechniques.com)
  • I want to create vacuum at pressure level of 0.5 Pa absolute. (omega.com)
  • As it comes out of the tube, pressure is applied in a vacuum as well as to the outside to create and calibrate the wall thickness of the product. (proportionair.com)
  • Proportion-Air's closed loop technology provides the needed adjustments to air pressure. (proportionair.com)
  • They were using shop air and asked us to upgrade their flow control back pressure regulator system for low pressure tube extrusion. (proportionair.com)
  • For more than a century and a half, Gardner Denver has been a trusted partner for the world's most demanding and ever-changing compressed air, pressure and vacuum needs. (gardnerdenver.com)
  • Distributes pressure more equally on body surfaces, leading to lower risk for pressure ulcer formation compared to a long board Its drawbacks include: Relatively fragile (useless unless a perfect vacuum is maintained). (wikipedia.org)
  • While at ambient air pressure, the beads free to move, but when the mattress has been moulded and the air evacuated, external atmospheric pressure locks the beads in place (jamming) and the mattress becomes rigid. (wikipedia.org)
  • Enough air pressure is pumped into the cuff to close the artery. (cdc.gov)
  • The Chemical Duty Dry Vacuum Pump is oil-free for minimized maintenance and maximum resistance to aggressive vapors. (terrauniversal.com)
  • Workers are mostly exposed from breathing air that contains mercury vapors, but may also be exposed to other inorganic mercury compounds in the workplace. (cdc.gov)
  • A sheet is put on the mattress, folded so it will be possible to pull it to wrap the casualty into using an S-fold and finally a team member should double-check the pump (manual or electrical) is set to either pump air out of the bag. (wikipedia.org)
  • You can use several gadgets to keep them in the best shape, such as a computer vacuum , and these also work well for accessories, such as keyboards, monitors and smaller electronics. (8newsnow.com)
  • The WindTunnel® Air Steerable Pet Upright has conveniences, including 3 channels of suction, a built-in telescopic wand, and multi-floor brushroll that make precision cleaning a breeze. (hoover.com)
  • The R25 Clean Air Upright vacuum boasts several wonderful features in a sleek design that will you will love using. (riccar.com)
  • The Clean Air R25 Series is unparalelled in its features and cleaning power. (riccar.com)
  • The R25 Clean Air line is available in 3 models: the Standard, the Deluxe & the Premium. (riccar.com)
  • It ensures clean exhaust air with dust re-emission class 'B' (scale from A to G). Two exhaust filters are included in the delivery. (kaerchershop-schreiber.de)
  • Try air-frying snacks and baked foods, such as air fryer chicken breast in this easy-to-clean device. (etonline.com)
  • Time to Clean the Air! (cdc.gov)
  • Run an air conditioner if you have one, but keep the fresh-air intake closed and the filter clean to prevent outdoor smoke from getting inside. (cdc.gov)
  • When it comes to supplying compressed air on construction sites in a way that minimizes noise and emissions and maximizes cost-efficiency, the new KAESER compressors with an electric drive are an ideal alternative to conventional solutions. (hannovermesse.de)
  • The Cut-off Saw with Vacuum Controls video shows the worker using a cut-off saw with local exhaust ventilation. (cdc.gov)
  • Vacuuming is okay if you are using a vacuum with a high-efficiency air filter. (cdc.gov)
  • This fan is unlike any other, as it also purifies the air in its vicinity, so you'll get plenty of use out of it even after summer ends. (apartmenttherapy.com)
  • It is powerful enough to blow up air mattresses, dry pets and furniture and inflate tires. (8newsnow.com)
  • The sweeper then blows the air out of the opposite side or back of the machine. (stewart-amos.com)
  • There is an increasing awareness of the quality of the air that we breathe indoors, particularly in homes affected by asthma or allergies. (allergystandards.com)
  • HIGH COST PERFORMANCE] Buying three kinds of different nozzles and mini brush at a time and say goodbye to disposable air cans from now on which can. (johnharvards.com)
  • When your vacuum filter gets. (johnharvards.com)
  • Thanks to their fine filter structure, they significantly improve air quality in offices and living spaces. (kaercher.com)
  • There is a washable filter and thermal protection, and it doesn't expel toxic air. (8newsnow.com)
  • Every minute, The Healthmate Plus™ draws over 250 cubic feet of air through a 4-stage filter containing 15 pounds of Activated Carbon impregnated with Potassium Iodide and over 60 square feet of True Medical Grade. (bestvacuum.com)
  • Austin Air's 360-degree intake system draws air into all sides of the Healthmate Plus™, passing it through a 4-stage filter. (bestvacuum.com)
  • Austin Air offers a 5-year pro-rated filter warranty, by far the most comprehensive in the industry. (bestvacuum.com)
  • This machine was comprised of an attic fan, which funneled air so as to create a suction, drawing mosquitoes into a collecting filter. (cdc.gov)
  • Vane compressors are characterized by exceptional durability, simplicity and high-quality compressed air. (techem.com.pl)
  • It can accurately read vacuum from 19,000 microns down to 0, over a wide temperature range of -17 to 65°C (0 to 150°F). The vacuum can be displayed in userselectable units. (omega.com)
  • Wildfire smoke can affect people even if they are not near the fire source, due to exposure to particles of PM 2.5 , which are inhalable air pollutants with aerodynamic diameter ≤2.5 microns. (cdc.gov)
  • This results in air volumes between two and five cubic meters a minute at pressures between seven and 14 bar. (hannovermesse.de)
  • The units are milligrams of respirable dust per cubic meter of air. (cdc.gov)
  • One study showed that and air flow rate of 70 cubic feet per minute (cfm) was required to achieve effective dust control. (cdc.gov)
  • Fully-reversed strain-controlled test results of a carbon steel (ASTM A 516 Gr. 70) in an ambient atmosphere and in a vacuum of 0.1 mPa are compared. (astm.org)
  • Starting with pristine nanowires covered only by the native oxide formed through exposure to ambient air, we investigate the effect of atomic hydrogen cleaning on the surface chemistry and electrical performance. (lu.se)
  • Two air relief valves allow you the control to reduce or increase the suction of the vacuum's force against your vinyl liner. (poolmaster.com)
  • A vacuum mattress consists of a sealed air-tight (typically polymer) bag enclosing small beads (typically polystyrene balls) and fitted with one or more valves. (wikipedia.org)