German Brand and Made in Germany, Your Trusted Choice Passed testing for ASTM F1670 (2008), ASTM F1671 (2013), DIN 75200, DIN EN ISO 9237, DIN 53892-2, VDA 270 – C2. Manufactured in compliance with EU CE, DIN EN ISO 10993:1, 10993:5, 10993:10, ISO 597 part 1+2, ISO 14971, ISO 848, ISO 3386, ISO 13485, ISO 16840, ISO 62366-1, ISO 1021-1 & 1021-2, MEDDEV 2.7.1, MDD, MPG, MPBetreibV, MDR, ensuring quality assurance. Complies with BS 7177 low fire resistance, DIN EN 597 I + II // BS 7175 sec 3 crib 5 fire safety standards. Featuring a groundbreaking design that combines different heights of pressure-relief materials (medical-grade gel, foam, air cells) to relieve pressure for users. Suitable for individuals who sit for long periods, providing excellent pressure relief while maintaining seated posture, effectively preventing the formation of pressure ulcers. Constructed with medical-grade breathable elastic gel + foam core, combined with 3 air cells, to evenly distribute pressure and effectively prevent pressure ulcers, suitable for individuals at very high risk (Very High Risk) / Stage 4 (EPUAP). The structure consists of three independent layers: the upper layer is made of medical-grade pressure-relief gel + foam, which is softer for cooling and pressure relief; the middle layer includes foam + 3 air cells (with the central air cell being visco foam and the two side air cells being gel + foam) to relieve pressure; the lower layer is a firmer medical-grade foam for support. The gel material helps cool down, ensuring a refreshing and comfortable experience. The visco foam in the middle rear of the middle layer provides pressure relief for the sacrum. The two gel foam pads in the middle rear provide pressure relief for the ischial tuberosities. No pump or additional tools are needed for inflation. Lighter and more portable than traditional inflatable cushions, making it easy to carry outdoors. High weight capacity, up to 200kg / 440.9lb. Includes a removable PU protective cover, breathable, waterproof, fire-resistant, and antibacterial. The PU cover is highly breathable, promoting air circulation and maintaining a microclimate, complying with 11-10 08/2004 microclimate testing. The PU cover is antiviral and antibacterial, meeting ISO201004-00969_3P and ASTM 1670 + 1671 antibacterial testing standards. The cover features 4-way stretch for durability. The PU cover can be washed at 60°C, can be cleaned with disinfectants, and is autoclavable at high temperatures (105°C) for hygiene maintenance. Anti-slip bottom prevents shifting. Available in 2 sizes to fit different seat dimensions. Inflation operation is very simple: Pull back the blue air valve cover for about 30 seconds to inflate (do not pull out the entire cover). Push forward the blue air valve cover to close the valve. User sits on the cushion. Pull back the blue air valve cover to deflate until the most comfortable feeling is achieved (place a hand between the arm and cushion, fingers can slightly bend upward). Push forward the blue air valve cover to close the valve.