The Importance of Wet and Dry Dust Collection in Maintaining Healthy Indoor Air Quality

Why Dust Collection?

To prevent indoor air pollution during manufacturing, air cleaners are routinely employed. Whether it be food products like pasta and sugar, chemical goods such as fertilizers and cosmetics, or necessary items like rubber tires and plastic toothbrushes, indoor air quality (IAQ) is improved by dust collection. But which type should be used? Wet dust collection? Dry dust collection? The answer is both, depending on the application.

To improve air quality on the factory floor or in a workshop, dust collection is a must. Why? To avoid fire, combustion, and polluted air, so as to improve production and keep workers free from harm.

Dry Dust Collection vs. Wet Dust Collection

Dry dust collection works by capturing fine particle dust emissions at the source using filters such as pleated cartridges or fabric bags to trap solid particles as air passes through. It is ideal for fine particulate dust emissions, such as mold spores, pollen, and hazardous materials like wood, chemical, and metal dusts that can potentially combust.

Wet dust collection (also known as dust scrubbing), in contrast, uses water or other liquids to remove pollutants such as flammable dusts, sticky materials, gases, and vapors. It is ideal for removing emissions, such as magnesium particles, adhesive particulate matter, and VOC vapors.

Industries and Applications 

Many businesses can benefit from both wet and dry dust collection. But which one is required will depend on the industrial application.

Dry dust collection benefits industrial applications such as:

Automotive – component manufacturing (metal dust and fumes)

Construction – cutting concrete and stone (crystalline silica dust)

Food Production – ingredient prep (grain, flour, and sugar dust)

Metalworking – grinding and welding metal (titanium and copper)

Pharmaceutical – blending and mixing chemical powders (parabens, acetone, VOCs)

Woodworking – sawing, milling, and sanding (sulfur dioxide, methane)

Wet dust collection can benefit manufacturing applications, including:

Aerospace – grinding and sanding of ignitable metals for aircraft components

Beverage – coffee roasting, sugar refining

Chemical – alkaline dusts such as sodium carbonate ash

Rubber – fillers such as carbon black, used for garden hoses

Textile – cutting and sewing fibrous particles

Health & Safety Risks from Dust

Both wet and dry dusts can present a danger of fire and explosion. Both can also pose health complications, such as:

Allergies – severe ear, nose, and throat congestion

Cancer – large amounts of dust, such as silica and asbestos, can cause lung cancer

Heart Function – ultrafine particles can cause blood clotting and blood vessels damage

Lung Disease – certain mineral dusts can cause black lung disease and silicosis

Neurological Damage – chronic metal dust inhalation can cause confusion and brain fog 

Dust Control Measures & Mitigation

Unfortunately, manufacturing workers cannot avoid exposure by themselves.  But companies can protect their personnel from the health hazards associated with workplace dust.  

Employees should wear personal protective equipment (PPE, such as goggles and facemasks). Manufacturing equipment should be routinely cleaned and tested. Work areas should be routinely cleaned, and proper ventilation should be in place.  The most successful way to guarantee an indoor air environment free of contaminants is to adhere to recommended control measures and by eliminating particulates via source capture equipment. Our SP-800 Portable Fume Extractor and our EAW1200 Wet Dust Collector are two such products that effectively eliminate unsafe emissions before they enter a worker’s breathing space.  To ensure your workplace has an IAQ that is healthy for all employees, contact an AIR Systems specialist to evaluate and offer control measures for your business.