• contains permanently electro-statically charged Filtrete™ fibers that attract and retain airborne micro-particles and allergens.
• Combines the optimal balance of filtration efficiency and air flow.
• Filtration Efficiency towards PM2.5 is 40 times higher than that of general air conditioner's plastic screen filter.
• Applicable for window type and split type air conditioner
• Recommend to change filter every 1-2 months to reduce air blockage
• 3M™ Filtrete™ Air filter is Health Partner of Amercan Lung Associatoin
• This product is certified by Asthma & Allergy Foundation of America as Asthma & Allergy Friendly™.

Powered by Filtrete™ filtration technology. Filtration efficieny towards PM2.5 is 40 times better than that of general air conditioner's plastic screen filter. This model is 15"x96" economy pack.