--- title: Common Problems with Negative Air Machine Setup description: A negative air machine is a critical tool in any dust containment strategy. image: https://www.hepacart.com/hubfs/201906-hepacart-what-is-an-anteroom.png --- [![mobile-icon](https://www.hepacart.com/hubfs/Hepacart-2016/Image/mobile-icon.png) 07788 266217](tel:9137899590)[![email-icon](https://www.hepacart.com/hubfs/Hepacart-2016/Image/email-icon.png) ](mailto:%20Info@hepacart.com)[info@hepacart.co.uk](mailto:info@hepacart.co.uk)[mailto:%20Info@hepacart.com](mailto:%20Info@hepacart.com) [**](https://www.facebook.com/HEPACART) [**](https://twitter.com/HEPACART_Inc) [**](https://plus.google.com/u/0/+HepacartIncorporated) [**](https://www.linkedin.com/company/hepacart-inc-) [**](http://feeds.feedburner.com/hepacart/pHuj) [![Hepacart UK 7](https://www.hepacart.com/hs-fs/hubfs/Hepacart%20UK%207.webp?width=1201&name=Hepacart%20UK%207.webp "Hepacart UK 7")](https://www.hepacart.com/uk) [Request A Quote](https://www.hepacart.com/request-a-quote-uk2019) [Shop Now](http://shop.hepacart.com/) ![hepacart blog](https://www.hepacart.com/hs-fs/hubfs/Hepacart-2016/Image/Website%20HEADERS/Info-Request-IMG.jpg?t=1479883894028&width=1900&name=Info-Request-IMG.jpg "hepacart blog") # The UK HEPACART Blog Information on Specialized Infection Control, Dust Containment Products, and Facility Management. [![2018-Hepacart-anteroom-em1-1](https://www.hepacart.com/hubfs/201906-hepacart-what-is-an-anteroom.png) ](https://www.hepacart.com/uk/blog/common-problems-with-negative-air-machine-setup) # Common Problems with Negative Air Machine Setup Posted by [HEPACART](https://www.hepacart.com/uk/blog/author/hepacart) on Jun 20, 2019 10:48:35 AM - [Tweet](https://twitter.com/share) A negative air machine is a critical tool in your dust containment arsenal. Without the ability to create a negative air pressure environment, it becomes virtually impossible to ensure that all hazardous particles are properly contained. If you have not worked with negative air machines before, figuring out how to set one up to meet all containment measures may seem a bit daunting, but it does not have to be. Below are a few tips to ensure you set up your containment area to provide a clean, safe work environment for patients, workers, and any surrounding personnel. ## Improper Area Containment Negative air machines can only be effective when the entire job site or containment area is properly walled off from the surrounding building. To create a safe space for dust containment, permanent or temporary barriers must enclose the space so that a negative air pressure environment can exist. The best way to ensure a space is set up correctly is by continuously monitoring the air pressure in the containment area.   ## Air Scrubber vs. Negative Air Machine Setup Although the functionality of an air scrubber and negative air machine is essentially the same, the two applications require a different setup, which can cause some confusion. Both air scrubbers and negative air machines take air in, push it through a filtration process, and expel clean air. However, an air scrubber is used to improve the air quality in a certain area by recirculating the cleaned air while a negative air machine must be connected to ducting that exhausts the air outside of the contained area.   ## Airflow Confusion The use of a negative air machine tends to come along with regulations about air changes per hour, or ACH. In a hospital construction environment or other high-risk areas, it is critical that you construct a containment area that meets these regulations. ACH requirements may be anywhere between 6 and 12 ACH, which means that the air in the room must be completely replaced between 6 and 12 times every hour. Different negative air machines will result in different ACH capabilities, depending on the size of your containment area. Be sure to calculate the power required when comparing machines to ensure that you invest in the right tools.   ## Positive vs. Negative Pressure There may come an instance where you need to create a positive air pressure environment. Luckily, this is entirely possible to accomplish with a negative air machine. To create a positive pressure environment, the only change necessary is to put the machine outside of the containment area and direct ducting into the area. Creating a positive air pressure environment may be necessary to keep a certain room from dust or hazardous particles in other parts of the building because HEPA-filtered air will be circulating into the space. Setting up a negative air pressure environment is a critical piece of proper containment procedures and does not have to be overly complicated. To keep things simple, set up the machine according to manufacturer instructions as well as dust containment regulations and you can be sure you are creating the safest possible work environment.   ### subscribe to the blog #### search the blog ### filter by Topic - [Infection Control (152)](https://www.hepacart.com/blog/topic/infection-control) - [Facility Management (130)](https://www.hepacart.com/blog/topic/facility-management) - [Dust Containment (88)](https://www.hepacart.com/blog/topic/dust-containment) - [Air Filtration & Disinfection (65)](https://www.hepacart.com/blog/topic/air-filtration-disinfection) - [Indoor Air Quality (61)](https://www.hepacart.com/blog/topic/indoor-air-quality) - [Facility Construction & Renovation (54)](https://www.hepacart.com/blog/topic/facility-construction-renovation) - [Education (32)](https://www.hepacart.com/blog/topic/education) - [Healthcare (23)](https://www.hepacart.com/blog/topic/healthcare) - [Patient Safety (23)](https://www.hepacart.com/blog/topic/patient-safety) - [AnteRoom (21)](https://www.hepacart.com/blog/topic/anteroom) - [Healthcare Facility Construction & Renovation (19)](https://www.hepacart.com/blog/topic/healthcare-facility-construction-renovation) - [STARC® Dust Containment Wall Barriers (15)](https://www.hepacart.com/blog/topic/starc-dust-containment-wall-barriers) - [About HEPACART (13)](https://www.hepacart.com/blog/topic/about-hepacart) - [HEPAFORCE®AIR Negative Air Machines & Scrubbers (12)](https://www.hepacart.com/blog/topic/hepaforceair-negative-air-machines-scrubbers) - [HEPAFORCE® GermBuster Room Air Purifiers (10)](https://www.hepacart.com/blog/topic/hepaforce-germbuster-room-air-purifiers) - [HEPACART® Dust Containment Cart (9)](https://www.hepacart.com/blog/topic/hepacart-dust-containment-cart) - [DUSTBUGGY® Dust Containment Cart (8)](https://www.hepacart.com/blog/topic/dustbuggy-dust-containment-cart) - [Cabling Access & Ceiling Access (7)](https://www.hepacart.com/blog/topic/cabling-access-ceiling-access) - [HEPA Filtration (7)](https://www.hepacart.com/blog/topic/hepa-filtration) - [UV-FORCE® Airborne Disinfection Module (7)](https://www.hepacart.com/blog/topic/uv-force-airborne-disinfection-module) - [Ambulatory Surgery Centers (6)](https://www.hepacart.com/blog/topic/ambulatory-surgery-centers) - [News (6)](https://www.hepacart.com/blog/topic/news) - [Surface Disinfection (5)](https://www.hepacart.com/blog/topic/surface-disinfection) - [Electrical Installation & Repair (3)](https://www.hepacart.com/blog/topic/electrical-installation-repair) - [Temporary Containment (1)](https://www.hepacart.com/blog/topic/temporary-containment) [see all](https://www.hepacart.com/uk/blog/common-problems-with-negative-air-machine-setup#) ### Recent Posts [![Air Change Calculator](https://no-cache.hubspot.com/cta/default/224884/7e5036ac-59f9-4a5f-8ea7-c79b1239259a.png)](https://cta-redirect.hubspot.com/cta/redirect/224884/7e5036ac-59f9-4a5f-8ea7-c79b1239259a) [**back to the blog](https://www.hepacart.com/uk/blog/common-problems-with-negative-air-machine-setup#) ## You might also like ![Hepa-Bg.jpg](https://www.hepacart.com/hs-fs/hubfs/Hepacart-2016/Image/Hepa-Bg.jpg?width=1922&name=Hepa-Bg.jpg "Hepa-Bg.jpg") View our products [![download catalog now](https://no-cache.hubspot.com/cta/default/224884/452aa574-2edd-409d-b0b5-8ec7747ce306.png)](https://cta-redirect.hubspot.com/cta/redirect/224884/452aa574-2edd-409d-b0b5-8ec7747ce306) ### About us The HEPACART® mission is to develop productive, durable, job-flexible, safe and sustainable containment solutions that protect patients from dust and pathogens in healthcare and other high-risk environments. - Unit 3 Guardian Point Guardian St Warrington WA5 1SJ - [0787 569 4521](tel:07875694521) - [info@hepacart.co.uk](mailto:%20Info@hepacart.com) ### Recent Post ### Quick Links - [WHAT WE DO](https://www.hepacart.com/what-we-do-value-proposition-uk) - [OUR PRODUCTS](https://www.hepacart.com/hepacart-products-uk) - [APPLICATIONS](https://www.hepacart.com/applications-uk) - [RESOURCES](https://www.hepacart.com/additional-resources-uk) - [SHOP NOW](http://shop.hepacart.com/) - [PRACTICAL GUIDE TO INFECTION CONTROL](https://www.hepacart.com/infection-control-uk) - [INFECTION CONTROL FOR FACILITIES MANAGERS](https://www.hepacart.com/infection-control-for-facilities-managers-uk) - [PRIVACY POLICY](https://www.hepacart.com/hubfs/Privacy%20Policy.pdf) Copyright 2018 [**](https://www.facebook.com/HEPACART) [**](https://twitter.com/HEPACART_Inc) [**](https://plus.google.com/u/0/+HepacartIncorporated) [**](https://www.linkedin.com/company/hepacart-inc-) [**](http://feeds.feedburner.com/hepacart/pHuj) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "HEPACART", "url" : "https://www.hepacart.com/uk/blog/author/hepacart" }, "dateModified" : "2024-04-09T16:40:39.080Z", "datePublished" : "2019-06-20T15:48:35.000Z", "headline" : "Common Problems with Negative Air Machine Setup", "image" : [ "https://www.hepacart.com/hubfs/201906-hepacart-what-is-an-anteroom.png" ], "mainEntityOfPage" : { "@id" : "https://www.hepacart.com/uk/blog/common-problems-with-negative-air-machine-setup", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.hepacart.com/hubfs/02-Templates/HPCT_Order_AlternateLogo_325x160.png" }, "name" : "HEPACART® Inc." } } ```