{"product_id":"negative-air-unit-2000cfm-3400m3-hour-hepa","title":"Negative Air Unit – 2000 CFM \/ 3400m3\/hr H13 HEPA | Asbestos \u0026 Silica Containment","description":"\u003cp\u003e\u003cstrong\u003e2000 CFM — 3400 m³\/hr — of true HEPA-filtered extraction\u003c\/strong\u003e in a seamless roto-moulded shell built to survive site. The HSS3300 draws contaminated air through a two-stage filter train and exhausts it clean, or ducts it outside to hold a containment under negative pressure. Two speeds, 24\" x 24\" H13 HEPA, and stacking grooves moulded into the housing so three units travel as one footprint.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000 CFM \/ 3400 m³\/hr Airflow\u003c\/strong\u003e enough to turn over a standard containment several times an hour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH13 HEPA Filtration\u003c\/strong\u003e rated 99.97% efficient, the grade specified for abatement work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 24\" x 24\" Filters\u003c\/strong\u003e no proprietary sizing, so replacements are easy to source and cheap to hold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Stage Filter Train\u003c\/strong\u003e pre-filter catches the bulk, HEPA catches what matters, and the pre-filter protects your HEPA spend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Speed Operation\u003c\/strong\u003e dial airflow to the containment instead of running flat out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifferential Pressure Gauge\u003c\/strong\u003e tells you when filters are loaded instead of leaving you to guess\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoto-Moulded Seamless Housing\u003c\/strong\u003e no seams to leak, no panels to crack, no rust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive-Lock Filter Retention\u003c\/strong\u003e filters cannot shift in transit or under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoulded-In Stacking Grooves\u003c\/strong\u003e nest up to three units for transport and storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-Point Motor and Cage Mounting\u003c\/strong\u003e holds alignment through the kind of handling site equipment actually gets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDucted Inlet and Outlet\u003c\/strong\u003e 315mm outlet takes lay-flat or rigid duct for exhaust outside the containment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240V \/ 10A\u003c\/strong\u003e runs off a standard site outlet, no three-phase, no transformer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCFM or m³\/hr — how to compare machines\u003c\/h2\u003e\n\u003cp\u003eNegative air machines get quoted both ways and it makes comparison shopping harder than it needs to be. They are the same number in different units: \u003cstrong\u003e1 CFM = 1.699 m³\/hr\u003c\/strong\u003e. This machine is 2000 CFM, which is 3400 m³\/hr.\u003c\/p\u003e\n\u003cp\u003eTwo things worth checking when you compare against another unit. First, whether the figure quoted is free air or airflow with filters fitted — a number measured with nothing in the filter track is not the number you will get on site. Second, whether it is the maximum or a rounded-down working figure. We quote the machine's rated maximum with the filter train installed.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt for containment work\u003c\/h2\u003e\n\u003cp\u003eSet up inside an enclosure and duct the exhaust outside, and the HSS3300 pulls the containment negative, so air moves into the work area, never out of it. That is the whole principle behind asbestos enclosures and silica-generating fit-out work, and it is the difference between dust staying in the room and dust ending up in the rest of the building.\u003c\/p\u003e\n\u003cp\u003eRun it as a recirculating scrubber instead and it simply cleans the air in place, dropping airborne particulate in occupied areas, during demolition, or after a strip-out. Both modes, one machine, no accessories to buy.\u003c\/p\u003e\n\n\u003ch2\u003eSilica dust and the new NSW rules\u003c\/h2\u003e\n\u003cp\u003eSince 1 September 2024 the NSW WHS (Crystalline Silica Substances) Regulation has required PCBUs to control silica processing, document a silica risk control plan, carry out air monitoring, provide health monitoring and train workers on the risk. Engineering controls sit at the top of that hierarchy — above PPE — and a HEPA negative air machine is one of the few controls that works on the airborne fraction rather than at the tool.\u003c\/p\u003e\n\u003cp\u003eConfirm the specific control measures your risk assessment requires. This machine is equipment, not advice.\u003c\/p\u003e\n\n\u003ch2\u003eBuy or keep hiring?\u003c\/h2\u003e\n\u003cp\u003eTypical hire of a similar unit runs around $650 a week. At that rate the HSS3300 pays for itself in a few weeks of use, and every week after that is margin instead of cost. If you are running containments more than one month a year, owning wins.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHSS3300 (240V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAirflow\u003c\/th\u003e\n\u003ctd\u003e2000 CFM — 3400 m³\/hr (56.7 m³\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor power\u003c\/th\u003e\n\u003ctd\u003e1000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e240 V \/ 50 Hz, 10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFan speed\u003c\/th\u003e\n\u003ctd\u003e2400 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed settings\u003c\/th\u003e\n\u003ctd\u003eTwo (high \/ low)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFiltration\u003c\/th\u003e\n\u003ctd\u003eTwo stage — pre-filter + H13 HEPA, rated 99.97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHEPA size\u003c\/th\u003e\n\u003ctd\u003e24\" x 24\" (610 x 610 mm) standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet\u003c\/th\u003e\n\u003ctd\u003e315 mm dia. duct connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHousing\u003c\/th\u003e\n\u003ctd\u003eRoto-moulded polyethylene, seamless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003ePower switch, 10 A circuit breaker, differential pressure gauge, power supply receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMobility\u003c\/th\u003e\n\u003ctd\u003eFour casters, moulded lifting handles both sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStacking\u003c\/th\u003e\n\u003ctd\u003eUp to 3 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e1020 x 740 x 800 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e70 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColour\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x HSS3300 negative air machine\u003c\/li\u003e\n\u003cli\u003e1 x H13 HEPA filter (installed)\u003c\/li\u003e\n\u003cli\u003e1 x pre-filter (installed)\u003c\/li\u003e\n\u003cli\u003eFour caster wheels\u003c\/li\u003e\n\u003cli\u003eOperation and maintenance manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReplacement filters\u003c\/h2\u003e\n\u003cp\u003eWe stock the 24\" x 24\" H13 HEPA and the matching pre-filter, so the machine does not sit idle waiting on a part. Filters are the running cost of a containment programme — order spares with the machine and keep a set on the truck.\u003c\/p\u003e\n\n\u003ch2\u003eQuestions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill it run on a normal site power outlet?\u003c\/strong\u003e Yes, 240 V, 10 A, standard plug. No three-phase required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it for asbestos removal?\u003c\/strong\u003e It is the class of equipment used for that work, filtered to H13 HEPA. Whether it satisfies the requirements of your specific removal control plan is a decision for your licensed removalist and your risk assessment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many do I need for my containment?\u003c\/strong\u003e Depends on enclosure volume and the air changes per hour your control plan calls for. Send us the dimensions and we will run the numbers with you.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you supply ducting?\u003c\/strong\u003e Yes, 315 mm lay-flat and rigid duct available separately, ask for a quote.\u003c\/p\u003e","brand":"Hazmat Suppression Systems","offers":[{"title":"Default Title","offer_id":53815034216762,"sku":"BS-DAC-AS110020","price":10998.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/3512\/8378\/files\/NegativeAirMachineAS110020_2000CFMH13HEPA_Asbestos_SilicaContainment-SideView_BuildStock.png?v=1785423471","url":"https:\/\/buildstock.com.au\/products\/negative-air-unit-2000cfm-3400m3-hour-hepa","provider":"BuildStock","version":"1.0","type":"link"}