{"id":12794,"date":"2018-11-01T11:34:16","date_gmt":"2018-11-01T06:04:16","guid":{"rendered":"https:\/\/smartairfilters.com\/in\/?post_type=product&p=12794"},"modified":"2026-01-25T09:47:42","modified_gmt":"2026-01-25T04:17:42","slug":"blast-ffu-hepa-filter","status":"publish","type":"product","link":"https:\/\/smartairfilters.com\/in\/en\/product\/blast-ffu-hepa-filter\/","title":{"rendered":"Blast HEPA Filter"},"content":{"rendered":"

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Blast H13 HEPA Filter<\/strong><\/h1>\n

Clean air in your office and hospitals<\/h4>\n<\/div>\n<\/div>\n
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The Blast HEPA protects you from Delhi pollution<\/strong><\/h2>\n

India\u2019s air pollution is a serious problem. Even though the COVID-19 lockdown had reduced air pollution, <\/span>Delhi air still remained above WHO limits<\/a>, and cities like Kolkata and Mumbai saw\u00a0<\/span>no major improvement in air quality<\/a>.<\/span><\/p>\n

The Blast’s HEPA filter effectively traps particles like PM2.5, dust, pet fur, viruses, and mold. You won’t have to worry about your allergies or asthma any longer!<\/p>\n<\/div>\n\n\n\n\n<\/colgroup>\n\n\n\n

\nPM2.5<\/td>\n
\nDust<\/td>\n
\nViruses<\/td>\n<\/tr>\n

\nAllergens<\/td>\n
\nPollen<\/td>\n
\nMold<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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Blast HEPA’s massive area captures 99.95% of pollutants<\/strong><\/h2>\n

The Blast HEPA filter is huge \u2014 20 times the size of our Original DIY HEPAs.<\/p>\n

We tested over 10 different HEPA materials before deciding on using an H13, 99.95% grade HEPA filter. That means it can capture 99.95% of those particles above (and below) 0.3 microns!<\/p>\n

H13<\/strong><\/p>\n

HEPA Grade<\/p>\n<\/div>\n

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Are HEPA filters effective against COVID?<\/strong><\/h2>\n

A common concern is whether HEPA filters can filter viruses like the COVID-19 coronavirus. HEPA filters remove particles greater than or equal to 0.3 microns<\/span>, but virus particles are smaller. The coronavirus measures 0.06 to 0.14 microns <\/span>in diameter. Are air purifiers then powerless against viruses?<\/p>\n

Actually, HEPA filters actually work great <\/b><\/span>at capturing viruses. This is because a HEPA filter works not like a net, but through a process called diffusion<\/b><\/span>. Learn more about how this works here<\/a>.<\/p>\n<\/div>\n<\/div>\n

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How often should I change the HEPA?<\/strong><\/h2>\n

We tested a HEPA in real Beijing air for 200 days to get a sense of how long HEPAs last in real Beijing air.<\/a><\/p>\n

Based on that data, Paddy estimated a HEPA lifespan of 2900 hours<\/strong> for the Blast. This is roughly equal to 12 months<\/strong> at 8 hours of use every day. If you use it more or less, you can calculate lifespan using the total number of hours below.<\/p>\n<\/div>\n\n\n\n\n<\/colgroup>\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Room size: 1400 sqft<\/td>\n\n
12<\/span>months<\/strong><\/div>\n
2,900 hours<\/strong><\/div>\n<\/td>\n
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Room size: 900 sqft<\/td>\n\n
11<\/span>months<\/strong><\/div>\n
2,600 hours<\/strong><\/div>\n<\/td>\n
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Can I wash a dirty HEPA filter?<\/strong><\/h2>\n

Unfortunately not.<\/b> We ran experiments to test this and found that washing HEPA filters do not prolong their lifespan<\/a>. In fact, washing HEPA filters with water actually decreases<\/b> performance. That\u2019s why we recommend you replace your Blast HEPA filter after the maximum hours of use.<\/p>\n

At \u20b913,499 <\/span>for a year of clean air, the Blast HEPA offers you the best prices for clean air.<\/p>\n<\/div>\n<\/div>\n

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Time to change the HEPA?<\/h2>\n