Purchased to sterilize the laboratory environment. However, I'm not sure if it's sterile on its own as it doesn't say so on the label. I took a chance as it's sterile. Well, my cells are growing normally. It's a lot cheaper than the VWR product. If you are on a budget this would be a good choice. I give 5 stars whether it's sterile or not. Update: I found a contaminated cell culture medium and used the filter to test its working efficiency. Please check the picture I took under the microscope. The filter works great. So I give the finale 5 stars
NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
20 Review
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review
NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review