Honeywell HPF35M1120 H11 Grade HEPA Air Filter for HAC35 (White) Honeywell invents and manufactures technologies to address some of the world’s toughest challenges initiated by revolutionary macro trends in science, technology and society. A Fortune 100 company, we create solutions to improve the quality of life of people around the globe. Honeywell air purifiers are sold across the world and Honeywell Air TouchTM is a preferred choice when it comes to efficient, innovative, reliable and aesthetically superior air purifier products. Indoor air pollution can be up to 10 times worse than outdoor air pollution as per a recent research report. This is because contained areas enable potential pollutants to build up more than open spaces. Honeywell Air TouchTM range of intelligent air purifiers come with a unique multi stage filtration process that destroy indoor air pollutants leaving behind a fresh, pollution free and hygienic breathing environment for you and your loved ones.