{"id":14121,"date":"2023-09-18T16:37:00","date_gmt":"2023-09-18T16:37:00","guid":{"rendered":"https:\/\/smartairfilters.com\/uk\/?post_type=product&p=14121"},"modified":"2026-04-13T09:21:15","modified_gmt":"2026-04-13T09:21:15","slug":"blast-hepa-filter","status":"publish","type":"product","link":"https:\/\/smartairfilters.com\/uk\/en\/product\/blast-hepa-filter\/","title":{"rendered":"Blast HEPA H13 Filter"},"content":{"rendered":"\n
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Blast HEPA <\/strong>H13 f<\/strong>ilter<\/strong><\/h1>\n

Clean air in your office and hospitals<\/h4>\n<\/div>\n<\/div>\n\n\n\n
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The Blast HEPA protects you from pollutants and COVID-19<\/strong><\/h2>\n

Air pollution is a serious environmental and health issue. Tiny microscopic particles can slip past our body's defences and penetrate deep within our lungs and heart. Clean air in our homes is all the more important during the COVID pandemic.<\/p>\n

The Blast's HEPA filter effectively traps particles like PM2.5, dust, allergens, bacteria, and viruses. Enjoy worry-free clean air in your hospitals and offices!<\/p>\n<\/div>\n<\/colgroup>\n\n\n\n

PM2.5<\/td>\n
Dust<\/td>\n
Viruses<\/td>\n<\/tr>\n

Allergens<\/td>\n
Pollen<\/td>\n
Mould<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n\n\n\n
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Blast HEPA's massive area captures 99.97% 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, 99.97% grade HEPA filter. That means it can capture 99.97% of those particles above (and below) 0.3 microns! The Blast HEPA's efficiency means it's suitable for health facilities like hospitals.<\/p>\n

All Smart Air filters are certified to GB13554-2020 & GBT6165-2021 standards. This is the Chinese equivalent of EN1822 \/ ISO29463 and is independently tested.<\/span><\/em><\/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 removes 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\n\n\n

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

We tested a HEPA 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 5250 hours*<\/strong> for the Blast. This is roughly equal to 22 months*<\/strong> at 8 hours of use every day.<\/p>\n

* The filter lifespan will vary according to the pollution levels in your location. Using air quality data from the W.H.O., we can estimate that the HEPA lifespan for the UK will be <\/span>8100 hours <\/span><\/strong>or <\/span>33 months<\/strong>. Please use this figure as a rough guideline only as this is the average across the whole of the UK and London will be more polluted than the Scottish Highlands.<\/em><\/p>\n<\/div>\n<\/div>\n\n\n\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 does 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 \u00a3<\/span>114 for a replacement filter, the Blast HEPA offers you the best prices for clean air.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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

The Blast is easy to use. You\u2019ll only need to change it every 33 months (based on running 8 hours a day), but we still tried to keep things simple.<\/p>\n

<\/figure>

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HEPA Filter - FAQs<\/h2>\n\n\n
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When should I replace the HEPA filters in my Smart Air Purifier?<\/h6>
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The HEPA filter lifespan varies for each purifier. You can find the recommended filter replacement time in each of our air purifier manuals. However, lifespan also varies depending on where you use your purifier, how dirty the air is, and how often you turn it on every day. That\u2019s why we make sure to run real-world tests on all our purifiers, and provide a HEPA filter lifespan calculator<\/a> to help you calculate how often you need to change your HEPA filter for your exact situation.<\/p>\n<\/div><\/div>\n\n\n\n

Why do my HEPA filters smell?<\/h6>
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The HEPA filter is made of non-toxic PP\/PET material. A new filter may have a faint scent from the glue which is also non-toxic. After being used in the purifier for 2-3 days, this scent will fade away.<\/p>\n\n\n\n

If the filter is left unused for a period of time with no wind passes through, the excessive moisture in the air will aggravate the breeding of bacteria, which produces acidic smell when turning on the model again.<\/p>\n\n\n\n

In this case, you can turn on the machine and let the wind blow through several times, or put the filter under the sun for a few days. If all the above does not work, it is recommended to replace the filter.<\/p>\n<\/div><\/div>\n\n\n\n

Why not use a higher grade HEPA filter?<\/h6>
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Smart Air\u2019s current HEPA filter is selected from more than 20 different pricings and different purification efficiencies after many experiments and comparisons. A higher grade filter with a higher purification efficiency also means lower airflow. Thus, we combined the fan power and effectiveness to select the current filter. See here for more details: https:\/\/smartairfilters.com\/en\/blog\/weaker-filter-stronger-purifier\/<\/a><\/p>\n<\/div><\/div>\n\n\n\n

Does HEPA filter efficiency decrease over time and with age?<\/h6>
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This question is answered in two ways:<\/p>\n\n\n\n

    \n
  1. Over time, HEPA filters actually get more effective at capturing tiny particles. As a HEPA filter gets used, it gets filled up with dirt and particles. This improves the HEPA filter\u2019s ability to filter out the air.<\/li>\n\n\n\n
  2. As a HEPA filter gets more and more clogged up with particles, the resistance to air passing through the filter also increases. This means that although the filter is better at capturing particles, it\u2019s more difficult for air to pass through it.<\/li>\n<\/ol>\n\n\n\n

    Overall, these two factors mean that a HEPA filter\u2019s overall ability to clean a room (or the air purifier\u2019s airflow and CADR) does decrease over time and with use.<\/p>\n<\/div><\/div>\n\n\n\n

    Does Smart Air recycle filters?<\/h6>
    \n

    For now, we don\u2019t provide recycling service, because there is no proper way to do so. We tried to make the filters as environmentally friendly as possible. For example, we replaced metal frames with biodegradable cardboard. We also make sure to only use certified environmentally friendly glue in our filters, and to reduce the amount of glue without compromising on cleaning efficiency. E.g. for the Blast and Blast Mini filters, when we switched from metal to cardboard frames, we also reduced the total glue used, being even more environmentally friendly!<\/p>\n<\/div><\/div>\n\n<\/div>","protected":false},"excerpt":{"rendered":"

    HEPA filters capture particulate pollution like PM2.5 and pollen, and are the key to clean air. This is the replacement HEPA H13 filter for the Blas air purifier<\/a>.<\/p>\n

    Delivery to EU Countries: <\/span><\/strong>For most EU countries, delivery charges are \u00a315 for up to 2kg weight using postal services (Royal Mail). The final cost will be calculated at checkout and delivery can take 1 to 4 weeks. Please note that delivery charges are non-refundable if the goods have arrived in your country.\u00a0<\/span><\/p>\n

    This product excludes UK sales tax but you will be required to pay EU tax (and possibly customs) on arrival. The customs is 0% for this product in the UK - while we assume it is the same for EU countries, you should\u00a0check this before ordering. The customs export code is 8421392590.<\/span><\/p>\n

    We offer a 1 year UK warranty on manufacturer faults but you will bear the cost of returns in all situations including changing your mind.<\/span><\/p>\n","protected":false},"featured_media":14124,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"product_brand":[],"product_cat":[51],"product_tag":[63],"class_list":{"0":"post-14121","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-filters","7":"product_tag-smart-air-blast-mini-hepa-h13-filter","8":"product_shipping_class-blast-mini-filters","9":"sales-flash-overlay","10":"woocommerce-text-align-center","11":"woocommerce-image-align-center","12":"do-quantity-buttons","13":"wc-has-gallery","15":"first","16":"instock","17":"taxable","18":"shipping-taxable","19":"purchasable","20":"product-type-simple"},"yoast_head":"\nSmart Air UK<\/title>\n<meta name=\"description\" content=\"HEPA filters trap small particles like PM2.5 and dust. 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