Questions & Answers|Positive Air Respirators

Can you explain to me how this Positive Air Respirator System really works?

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The system works on a very basic principle. It takes air from a clean source and pumps it to the mask or hood that you are using in the contaminated area.

The pump is placed in a clean air area. One end of the hose is connected to the pump and the other end of the hose is connected to your mask or hood. The pump is plugged into a household plug and then all you have to do is turn on the switch. The mask or hood now have a positive air pressure and is ready to be used.

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Do I need to use any filters for this Positive Air Respirator?

Because the system pumps air from another room to the contaminated area it really doesn't need a filter. However the system comes with a HEPA filter, which basically just stops dust from going though. (Organic filters are available for this unit)

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Why couldn't I just use a Cartridge Respirator?

While cartridge respirators are often the choice of protection from these health hazards, this form of protection may not be enough! Instead, cartridge respirators may give a sense of false security, with wearers not aware of the following:

1.) Cartridge respirators should be fit tested. In fact, in many states or provinces, it is required by law to be fit tested at least once a year.

2.) Cartridge respirator filters should be changed regularly to be effective. If, like most people, it is not changed nearly often enough. People also get used to the smell and not notice it as much as they did before, changing it less and less often.

3.) With cartridge respirators, you must also consider what it might not be protecting you from that they may find out in a few years from now. (After the damage is done.)

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Do I really need a Positive Air Respirator (PAR)?

It really is depending on what you are doing and the type of substance that you are working with. Some situations it just isn't practical to to use a PAR.

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I do mostly auto body painting. Can I use this same system for doing sandblasting?

The nice thing about this system is that you can use it for many different applications. If you are using it for sandblasting we recommend using the Sandblasters hood. The nice thing with this system is that you can easily change different hoods and mask with this system.

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Can I add a longer hose to the Positive Air Respirator? If so how much can I add.

Yes, the hose are available in 50 feet and 100 feet length. The are also available in the same length to attach on the air intake of the pump. The maximum recommend length is 200 feet.

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Do I have to put the pump of Positive Air Respirator outside when I'm using it?

Put the pump in the cleanest area possible. Be sure that the air in that area wont become contaminated as you are working. If you smell the contamination when you are working, it means that you need to find a better place for the pump.

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What parts will I need to replace on the Positive Air Respirator? Should I keep any spare parts on hand? If so, which parts?

This system stands up very well. We found that

the HEPA filter on the pump should be replaced from time to time.
the lens or the face shield on the full face mask, full hood or sandblasters hood may need replacing if paint gets on it.

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Is this Positive Air Respirator available with a 220 volts motor?

The MC1 system uses 110 volts. Currently the MC1 unit is not available in 220 volts.

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Why should I purchase your Positive Air Respirator?

We challenge you to look around. We have found that this system is the most economically and effective system on the market.

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What are the specification of the MC-1 units?

Volume/Pressure
The MC-1 Micro-Compressor is designed to provide a minimum of 6 CFM at 0.5 PSI to the approved respirator

This unit will also provide a minimum of 4 CFM to a half or full-face respirator or 6 CFM to a hood. It is designed to perform specifically with the NIOSH approved Neoterik low pressure respirators and face-pieces provided with the unit.

Breathing Air Temperatures
The MC-1 Micro-compressor is designed to provide breathing air at no more than 10º F above ambient air temperature when used with a 50 or 100 feet airline with an 3/4 inch inside diameter.

Electric Motor
The electric motor used is designed to operate with 3 ampere current requirement when used on a 115 volt circuit.

Air Compressor
The air compressor is designed to operate at 1750 RPM and produce a minimum of 6 CFM of at at 0.5 PSI.

Inlet HEPA Filter
This filter is fitted to the inlet of the air compressor. It is a High Efficiency Particulate Absolute (HEPA) filter designed to remove fibers and particles down to 0.3 microns. The precise filter characteristics are found on the label of the filter cartridge.

Inlet Organic Vapor Filter
This filter is fitted to the inlet of the air compressor. It is an absorbing filter effective against the concentrations and types of organic vapors listed on the cartridge.

Inlet HEPA/Organic Vapor Filter
This filter is designed to provide the filtering characteristics of both the HEPA filter and the Organic Vapor Filter listed above.

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