For further information please see full disclaimer. Type CE abrasive-blast supplied air respirator operated in a pressure-demand or positive pressure mode with a tight-fitting full-facepiece. Disclaimer: This web resource has been prepared to assist the workplace parties in understanding some of their obligations under the Occupational Health and Safety Act OHSA and the regulations.
It is not intended to replace the OHSA or the regulations and reference should always be made to the official version of the legislation. It is the responsibility of the workplace parties to ensure compliance with the legislation. This web resource does not constitute legal advice. If you require assistance with respect to the interpretation of the legislation and its potential application in specific circumstances, please contact your legal counsel. While this web resource will also be available to Ministry of Labour inspectors, they will apply and enforce the OHSA and its regulations based on the facts as they may find them in the workplace.
This web resource does not affect their enforcement discretion in any way. Milling of asphalt from concrete highway pavement. Charging mixers and hoppers with silica sand sand consisting of at least 95 per cent silica or silica flour finely ground sand consisting of at least 95 per cent silica.
Any other operation at a project that requires the handling of silica-containing material in a way that may result in a worker being exposed to airborne silica. Working within 25 metres of an area where compressed air is being used to remove silica-containing dust outdoors.
Protection from small airborne particles is why some construction workers and painters must also wear N95 masks professionally.
Additionally, people who operate poorly constructed abrasive blasters and DIY sandblasting cabinets are often seen wearing N95 masks. The main reason is slow cleaning speed. Often these cabinets come with a smaller gun size is matched with a smaller, cheaper dust collector to get the lowest possible machine price.
In addition to a low-cost machine, this results in low frictional heat and a much longer part cleaning time. ProTip: On average what takes a cfm dry gun 1 hour to clean takes a cfm gun 15 minutes to clean, or a cfm gun 5 minutes to clean, or a cfm gun less than 2 minutes to clean.
Also silica gets very fine when used and can stay in the air on a still day for quite a while. Mar 31, 7. I have done some stupid stuff like sand my entire car body to bare metal using only the paper mask and sandblasting wearing the same. I am hoping that my limited exposure was not something that will kill me, but will never do it again.
About the only thing I will spray with a canister mask is Zero Rust, and I am even wondering if that is safe. Before I do more body work, an air supply system will be in my life! Although I was one of the dummies that did the wrong thing, I urge you to please consider getting an adequate air supply system before it's too late. Apr 1, 8. I've seen plans to make a supplied air system before, and I think it'd be a good idea for outside blasting.
A quicky search shows that plenty of people are just using whatever they have that moves air well, and rigging some air lines to a supplied air hood or suit. I have a gravity fed home sandblaster that I am using to remove rust from an antique stove. I sandblast outside and use a 3m respirator but I am still worried that I may somehow be inhaling silica.
So, while using a cabinet will a P95 half faced respirator provide the needed protection? Also, I am using a shop vac as dust control. I purchased a new filter for the vac, but is this sufficient to keep my workshop from filling with dangerous dust?
I suppose I could get an extension hose and vent to the outside of the building if recommended. I have a portable sandblasting unit and blast inside the shed with dual respirator and gas vapor filters. I do not believe i am completely protected as i can smell the sand in the air. Take this very serious. I have been doing some craft projects with a airbrush sandblaster. Just got back from the Dr.
0コメント