By changing the bag frequently, you can maximum power from your NV210 vacuum.
• 2 Per Pack
• Capture many pollens, spores, bacteria, dust mites and allergens.
• 99.9% efficient down to 0.3 micron and can capture particles as small as 0.01 micron.
Note: Your HEPA bag should be changed out every 4-6 weeks depending on usage. Gel dust and a skin over time clog the pores of the HEPA bag causing your machine to run as full. If you feel like you need to turn up the speed to the NV210 to get better sucking results. Try using a new bag you should notice a big difference.