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Typically blasters and painters are fed air by means of the air compressor which serves other site equipment. As this air is the result of powered machinery – it can contain contaminants such as oil vapor, dust, or carbon monoxide. This air then passes through a filter which cleans it before it reaches the respiratory helmets of the operators.
In contrast, a free air pump draws air from a clean surrounding environment with only a pump and therefore doesn’t require filters.
So far, Free Air sounds great as it delivers the following PROS:
• You don’t need a compressor
• You save money on filters
• They are available in both electric and gas models
But let’s look at the CONS – which is why BlastOne doesn’t recommend these pumps.
CONS:
• An air compressor is a fairly standard, common piece of equipment on commercial blasting and painting sites…so buying the pump is an additional, unnecessary piece of costly equipment.
• The pumps can usually be placed up to 300 feet from the operator, but does that ensure the intake air is free of jobsite contaminants?
• Although manufactures assert you don’t need to place a carbon monoxide alarm on the pump, we assert you should ALWAYS have a CO monitor protecting an operator when relying upon furnished respiratory air. The stakes are too high to just blindly trust any machinery prone to failure. Consider someone becoming dizzy or passing out while standing on scaffolding or within a toxic-fumes environment. Carbon monoxide poisoning can do that.
Please understand, we aren’t claiming Free Air Pumps are more dangerous than compressor fed air — we’re saying BOTH can be dangerous and so extra safety precautions should always be implemented.
We only recommend using a Free Air Pump (over compressor-fed air) when a compressor isn’t on the jobsite – AND – only if the environmental air is definitely free of contaminants. This professional recommendation simply comes down to financial costs. Do the benefits outweigh the costs?… and in our decades long experience — with compressors being common equipment on industrial jobsites — the cost advantage goes toward compressor fed air.
Homeowners typically use standard HVAC air filters. These are often enough to maintain the indoor air quality in an average home. However, if you are considering an upgrade, electrostatic air filters are a good option.
Read on as American Refrigeration Heating and Air Conditioning Co., Inc. explains how these air filters work and their pros and cons.
Most air filters are equipped with pleated sheets of fiber, which passively catch dust, dirt, and other particles that get through the HVAC system’s air handler. HEPA (high-efficiency particulate air) filters are another passive air filter that can capture microbes and other smaller particles.
On the other hand, electrostatic air filters feature a multi-step filtration process. It has an outer pre-filter similar to a standard air filter that captures relatively large particles. The particles that pass through the pre-filter are given a positive charge when they pass through the ionizing layer. The negatively charged material attracts and captures the positively charged particles. The escaped particles get captured by a second air filter before the air is released into the air ducts.
Superb Air Filtration. These filters are great for filtering air through your system, which makes them more capable of improving air quality than pleated filters.
Cost-Effectiveness. Most electrostatic air filters are washable, reducing the need to buy new air filters.
Convenience. Typically, buy filters every three months and find the right size for your HVAC system. But with electrostatic air filters, you can save time because they come in standard sizes.
More Frequent Maintenance. To maintain efficiency, electrostatic air filters need to be cleaned more frequently. This means you’ll have to stick to a regular cooling and heating service maintenance routine to avoid airflow problems.
Increased Ozone Concentration. Electrostatic air filters do not offer protection against ozone. They even tend to produce these hazardous molecules, which can aggravate respiratory diseases.
If you’re still unsure whether electrostatic air filters are for you, American Refrigeration Heating and Air Conditioning Co., Inc. can help. Whether you need a heating or air conditioning service, we have the expertise to help you keep your unit in tip-top condition. To schedule a consultation, call us at (662) 895-7204 or fill out our contact form.
If you want to learn more, please visit our website.
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