The Philips NanoProtect HEPA Series 3 filter for the Series 1000 Air Purifier captures 99.97% of particles even as small as 0.3 microns - the size of most common airborne allergens, harmful particles, bacteria and viruses. The high grade filter with firm and stable structure ensures all the air flows through the filter and delivers high filtration efficiency. Philips NanoProtect HEPA Series 3 filter has 111 optimized pleats. This covers an unfolded area of about 1.6m2 to ensure a long lifetime up to 12months.Features:
- Captures 99.97% of particles
- Lasts up to 12 months.