All standard size units are interchangeable with all standard size filters. STAGE 1 - Large Particle Pre-filter.Removes particles easily seen by the naked eye e. Dust, hair and pet dander. STAGE 2 - Medium Particle Pre-filter.
Removes small to medium size particles e. STAGE 3 - 60 sq. Of True Medical Grade HEPA. Removes 99.97% of all particles larger than 0.3 microns and 95% of all particles larger than 0.1 microns.
STAGE 4 - Military Grade HEGA Carbon Cloth. HEGA (High Efficiency Gas Arrestance), providing an extremely large surface area for adsorption of chemicals, gases, viruses and bacteria.
Check out my other items. This item is in the category "Home & Garden\Home Improvement\Heating, Cooling & Air\Indoor Air Quality & Fans\Air Filters". The seller is "atharvabrands" and is located in this country: US.This item can be shipped to United States.