What are N95 pre-filters and when should I use them?
A N95 pre-filter is often used in conjunction with a cartridge when protection from a non-toxic dust is necessary. A good example of when to use a prefilter would be with a charcoal or organic vapor cartridge for non-oil based pesticide and paint spray applications because they will trap liquid particles, extending the life of your cartridge.
Related Questions
- If I am using a Self Cleaning hood with Captrate, how often should I wash the pre-filters, replace the high efficiency filters, replace the HEPA filter and replace the odor control?
- Please explain why some water distillers use carbon "pre-filters" while some use carbon "post-filters". Is one method better than the other?
- Are smaller micron pre-filters (1 micron) better than 5 or 10 micron prefilters?