HUMIDEX Moisture Control and Air Quality Systems


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Humidex is an effective and energy efficient moisture control solution to the negative moisture and air quality issues. The patented Humidex ventilation unit can be installed into existing homes or incorporated into new construction. It focuses in on the most problematic areas reducing moisture levels and expelling indoor gases, chemicals, toxins and then replenishing it with drier healthier air. The unit reduces the negative natural conditions of excess moisture in a home that are conducive to the biological growth of mold, odors, mites, bacteria and infestation. By circulating the air throughout the house, there will no longer be the stagnant moist air pockets, which nurture biological contaminants. It will expel the polluted air that is part of the indoor environment and creates an air exchange throughout the house as recommended by all health authorities. The air circulation extracts moisture saturated into building materials to reduce condensation and structural damage.

Humidex is a mechanically controlled ventilation that is continuously operating and adjusting exhaust rates as needed, without any maintenance or complicated controls. There are no buckets of water or filters to change or complicated installations. Building design can now incorporate a unit that will resolve the health impact and structural damage from tightly sealed homes without sacrificing energy costs. The benefits and the ease of the installation and operation of Humidex qualify this as a remedial and proactive way of providing a healthy energy efficient home.

HUMIDEX Moisture Control Solution Process

The Humidex unit is installed at the lowest point to expel the most polluted and dampest air to the outside through a dedicated duct, similar to a gas dryer vent. The basement and crawl spaces are the dampest areas, have the heaviest concentration of gases (radon, combustion gas) pollutants (chemicals, underground toxic vapors) and are the least ventilated. The high relative humidity and cold surfaces aggravate the situation and the problems will then migrate into upper levels.

The expelled air is replenished with a drier and healthier air mass, which lowers relative humidity. The unit ventilates at a high rate when the relative humidity is above target, and then will reduce to a maintenance mode of 30-40 cfm after the relative humidity is reduced to the target area of 50-60% RH. Unit operates at the high rate when conditions demand it, generally in warmer times of the year. Otherwise, it is operating at a maintenance mode of 30-40 cfm. The unit continuously operates 24/7, reducing stagnation of moisture, extracting moisture and expelling gases, pollutants and toxins.

Energy Savings Features:

The overall dampness in the house is reduced, thereby increasing the performance efficiency of the heating and air conditioning system. It is less costly to heat or cool a dry environment. A study by the U.S. Department of Energy on crawls spaces found that when the humidity levels in the crawl spaces were reduced the overall costs in heating and cooling for the entire house were reduced by 17 %.

The moisture control unit is expelling at a low rate, which is within the guidelines mandated for a healthy air exchange of approximately 30-40 cfm. All homes have leakage and air infiltration, which is within the same range. The benefit of expelling with the Humidex is that the air being expelled is the most problematic and highest in moisture content. In addition, the impact is minimal in the heating season as the heat generally dries out the air and the relative humidity is low during most of the winter.

The exhaust rate increases when the relative humidity increases which generally occurs when the heating season is over. At that time, the unit exhausts a rate of 180 cfm, which is the equivalent of two-bathroom fan exhaust rate. The rate will decrease as soon as the humidity drops. It is not ventilating consistently at a high rate.

Better than a Dehumidifier

Moisture must be under control for health reasons to reduce growth of biological contaminants. HUMIDEX is more efficient than a dehumidifier. It uses less than 40 watts of electricity and costs approximately $3 per month versus a dehumidifier which can exceed $50 per month, on average. The savings are in the hundreds of dollars per year. A dehumidifier is limited in solving moisture problems as it just recycles the same stale polluted air and is limited in capacity. With Humidex, there is no maintenance, buckets of water or filters!

Benefits and Goals for an Indoor Air Package

  1. Moisture control reduces the conditions that are conducive to the biological growth and nourishment of mold spores, dust mites, infestation, by circulating the air and expelling moisture. Without stagnant moist air the molds become inactive and the other biological agents for respiratory ailments are deprived of the moisture they need to flourish.
  2. Humidex is installed in the lowest part where there is the heaviest concentration of moisture, gases, and biological pollutants. Moisture will absorb and retain pollutants. For these reasons children tend suffer from asthma as they are closer to the floor. The unit will expel these contaminants directly to the outside without the restrictions or limitations of filter mediums.
  3. Basements
    Basements are cold damp areas without ventilation. The moisture levels are the highest here; accumulating moisture that infiltrates from the outside and natural moisture generated from normal everyday activities. The cold in combination with moisture results in high relative humidity. The environment is conducive for biological growth and this air then moves upwards into living areas.
    Requirement- Extract moisture, raise temperature and ventilate to reduce relative humidity.
  4. Crawl Space:
    The crawl space is a primary source of indoor air quality, mold activity and the infiltration from the ground of radon, toxic gases, chemicals and moisture. Humidex unit is installed in crawl space area to expel the moist air and the pollutants. The installation provides for conditioned air to replenish it. Foundation vent are sealed as part of the installation process. Ventilation extracts moisture from exposed walls, beams and floors. The relative humidity and air quality in the crawl space will be comparable to the conditions in the upper level.
    Requirement :Crawl space should be unvented, insulated, conditioned
  5. Continuous Ventilation:
    Requirement -Air exchanges to expel indoor contaminants and replenish with fresh less polluted air as per ASHRAE 62.2, World Health Organization, Surgeon General, and EPA.

    The unit ventilates based on demand when moisture is high. It does not operate on a timer, randomness, or in limited areas (bathrooms) as the demand for increased ventilation may not exist then. It continuously expels the indoor air throughout the house and causes an air exchange that introduces fresher and healthier from the outdoors. The amount of air exchanges can vary between 6-10 times a day.

  6. Building Materials
    Requirement- Reduce the moisture saturated in building materials which when enclosed, provide a nutrient source for biological growth and cause structural damage.

HUMIDEX is constantly flowing over the surface and installation requirement mandates unobstructed air flows. This flow of air extracts moisture from concrete, floors, walls frames and beams protecting the structural integrity of the house. The unit will create an air flow in upper levels that will reduce window condensation.