HEPA H12 Filter Pack for Wear A+ Smokestop How does this filter differ

How does this filter differ from the 400 Series Particle filter

drainage is easy thanks to the supplied hose

The washable pre-filter (reticulated foam) prolongs the lifetime of the HEPA filter

Direct from the UK's original Airfree distributor with unique new for old warranty

HEPA H12 Filter Pack for Wear A+ Smokestop How does this filter differSet of replacement filters for wearable air purifier Respiray Wear A+ includes 2 x HEPA filters and 1 x washable pre filter. Each HEPA filter lasts for up to 200 hours of usage (around 3 months). Respiray Wear A+ HEPA filters have been lab tested in the USA by SGS. The HEPA H12 (equivalent to MERV 17) filters are over 99. 9% effective at filtering airborne allergens such as pollen (hay fever), dust mites, pet dander, and mould. The washable pre filter