{"product_id":"premium-guard-pureflow-hepa-cabin-air-filter-pc99334hx-fits-audi-q5-q7-a4-a5-porsche-cayenne-hepa-activated-carbon","title":"Premium Guard PureFlow HEPA Cabin Air Filter PC99334HX — Fits Audi Q5\/Q7\/A4\/A5 \u0026 Porsche Cayenne, HEPA + Activated Carbon","description":"\u003cb\u003ePureFlow HEPA Cabin Air Filter PC99334HX by Premium Guard is a multi-stage replacement cabin filter that traps fine particles, reduces odors and helps protect vehicle occupants from roadborne contaminants.\u003c\/b\u003e\n\n\u003cp\u003eDesigned for select Audi and Porsche models from 2017–2022, the PureFlow PC99334HX upgrades cabin air quality with four filtration stages including true HEPA media and activated carbon with odor-absorbing baking soda. It balances high-efficiency particle capture with low airflow resistance so HVAC systems run smoothly while filtering pollen, dust, smoke particulates and many vehicle exhaust gases. The filter is a direct-fit replacement intended for routine service intervals—manufacturers and technicians commonly swap cabin filters at least twice a year for optimal performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve air quality inside my car?\u003c\/h3\u003e\n\u003cp\u003eThe PC99334HX uses a layered approach: a HEPA-grade primary media captures microscopic particles, while dual activated-carbon layers reduce gases and odors. That combination reduces airborne particulates and limits lingering smells from traffic and urban environments without overly restricting airflow.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrue HEPA filtration media traps pollen, dust, smoke and fine particulates.\u003c\/li\u003e\n  \u003cli\u003eTwo-stage activated carbon adsorbs common exhaust gases like carbon monoxide and sulfur dioxide.\u003c\/li\u003e\n  \u003cli\u003eBaking soda-infused layer neutralizes stubborn interior odors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the filter affect my car’s HVAC performance?\u003c\/h3\u003e\n\u003cp\u003ePremium Guard engineered the PureFlow filter to keep pressure drop low compared with higher-restriction designs—about a 10–15% lower pressure loss versus PureFlow Advanced variants—so heating and cooling reach the cabin efficiently. Proper fit and reduced airflow resistance help maintain blower performance and climate system efficiency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLow pressure-drop design maintains effective blower airflow.\u003c\/li\u003e\n  \u003cli\u003eDirect-fit dimensions ensure a secure seal and correct airflow path.\u003c\/li\u003e\n  \u003cli\u003eRecommended replacement frequency preserves HVAC balance and filtration efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and maintenance schedule does this filter support?\u003c\/h3\u003e\n\u003cp\u003ePC99334HX is matched to a range of Audi and Porsche models (see compatibility list) made between 2017–2022, covering many A4, A5, Q5, Q7, and Cayenne variants. For most driving conditions, replacing the cabin filter twice a year is advised; more frequent replacement may be necessary in heavy-traffic, dusty, or high-pollen areas.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits model years listed for Audi Q5, Q7, A4, A4 Quattro, A5 Quattro and select Porsche Cayenne years.\u003c\/li\u003e\n  \u003cli\u003eTypical service interval: replace at least every 6 months, sooner in dirty environments.\u003c\/li\u003e\n  \u003cli\u003eEasy drop-in swap for factory filter housings—follow vehicle service instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes Premium Guard’s PureFlow different from a basic cabin filter?\u003c\/h3\u003e\n\u003cp\u003eUnlike standard paper or spun-bond filters, PureFlow combines HEPA-grade media with multi-stage activated carbon treatments to address both particulates and gaseous contaminants. The result is broader protection from a wider range of pollutants while controlling smells and maintaining comfort inside the cabin.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHEPA-grade media captures finer particles than standard filters.\u003c\/li\u003e\n  \u003cli\u003eActivated carbon layers target gases and volatile compounds.\u003c\/li\u003e\n  \u003cli\u003eMulti-stage arrangement balances filtration efficiency with airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers of compatible Audi and Porsche models who want a higher level of cabin filtration than standard replacements—especially allergy sufferers, urban commuters, and anyone sensitive to odors or fine particulates. Installers and owners seeking a direct-fit, low-resistance upgrade that addresses both particles and gases will find the PureFlow PC99334HX a practical service item for routine maintenance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this filter compatible with my 2019 Audi Q5?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — PC99334HX is listed as a fit for 2018–22 Audi Q5 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the PureFlow cabin filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace at least every six months; sooner in heavy-pollution or dusty conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Premium Guard","offers":[{"title":"Default Title","offer_id":48086026780830,"sku":"B004HOBIOC","price":44.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/premium-guard-front-packaging-pc99334hx.jpg?v=1785882153","url":"https:\/\/northtrailauto.ca\/products\/premium-guard-pureflow-hepa-cabin-air-filter-pc99334hx-fits-audi-q5-q7-a4-a5-porsche-cayenne-hepa-activated-carbon","provider":"North Trail Auto","version":"1.0","type":"link"}