Summary of Reddit Comments on "hepa vs. water filter":

HEPA filter for Vacuums:

• Recommendations include using a vacuum with a disposable bag and a HEPA filter for lead
• Disposable bags are recommended to avoid touching or breathing dust after vacuuming
• A vacuum with a disposable bag and a HEPA filter is suggested, along with routing the exhaust outside and using a proper respirator

Water Filters:

• Various water filter options are discussed for eliminating bacteria, parasite cysts, and viruses when in backcountry or wilderness settings
• Sawyer Squeeze and Grayl bottle filters are popular choices among hikers for their efficiency and reliability
• Boiling water is highlighted as an effective backup method for purifying water
• Chemical treatments like Chlorine dioxide are suggested for use after filtering to ensure water safety
• Purification methods like UV light and Ultra-filtration are also mentioned, with considerations for their limitations and effectiveness

General Water Quality and Tap Water:

• Discussion on the safety of tap water in different regions and the benefits of filtering water regardless
• Concerns raised about "Forever Chemicals" like PFAS contamination in water sources
• Recommendations to filter or purify tap water depending on individual circumstances and water quality
• Various methods for ensuring safe drinking water, including filtering, boiling, and chemical treatments

Other Comments:

• Random discussions about car maintenance and cleaning products
• Questions about the effectiveness and costs of Household water systems

Overall, the Reddit comments cover a range of options for both HEPA filters in vacuums and water filters for drinking water safety, with detailed explanations of various products, methods, and considerations for choosing the right one.