Certification:China Factory of Certificate Conformity
Model Number:ES1711
Payment & Shipping Terms
Packaging Details:250*233*33.5mm
Delivery Time:30days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:10000PC+3MONTHS
Gallery
ES1711 Innovative Air Purifier Filters Size For 250*233*33.5mm
Product Description
EDDYSTAR Innovative air purifier filters size for 250*233*33.5mm
Filtration Efficiency and Standards
Efficiency Testing: Air filters are evaluated using protocols like ISO 5011 to measure dust retention capacity (expressed as a percentage) and dust-holding capacity (in grams). For example, K&N filters achieve 96–99% cumulative efficiency under controlled lab conditions .
HEPA/ULPA Classification: High-efficiency particulate air (HEPA) filters are classified under ISO 29463 and EN 1822. For instance, HEPA H14 filters retain ≥99.995% of particles at the Most Penetrating Particle Size (MPPS), while ULPA ISO 50 U filters achieve ≥99.999% efficiency .