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If not properly installed, maintained, and operated, these components may become contaminated with particles of dust, pollen or other debris. If moisture is present, the potential for microbiological growth
(e.g., mold) is increased and spores from such growth may be released into the home's living space. Some of these contaminants may cause allergic reactions or other symptoms in people if they are exposed to them.

Enviro-Clean Services, Inc. has the training and experience to: identify H-VAC / Air Duct problem areas, evaluate potential mold growth or other allergens in your system, and properly clean your H--VAC/ Air Duct system to new condition.

PROCEDURES FOR AIR DUCT CLEANING:

1. Assessment

• Greet customer without crew
• Ask for location of electrical breakers, unit(s) and return air(s)
• Record the number of registers, unit(s), and return(s)
• Document and assess damage to register(s), unit(s), or return(s) with camera
• Draw map of air duct run(s) and unit(s)
• Estimate time for completion and alert customer
• Address concerns and questions of customer
• Sign work authorization sheet
• Make appointment with customer for signing completion form and returning home
• Assign jobs to crew and begin

2. Manipulation of contents

• Alert customer to the removal of air filter(s) and any content manipulation
• Dispose of air filters and remind customer to replace filter(s)
• Take pictures of positioning of furniture and contents
• Using dollies or proper lifting techniques move contents into unaffected areas
• Load contents into storage containers or off site if required
• Raise containment barriers or cover contents if needed
• All registers require plastic or cardboard covering of vents to avoid dripping
• Return air(s) require the recording of size of filter
• After fogging, removed barriers or covers and replace furniture in initial position

3. Implementation of Equipment

• Remove negative air machine, hoses, brushes, drills, buckets, scrubbers, paint guns,
  tape, fogger, saw, biocide, and sealant from van
• All equipment is placed an area inside away from exits for safety, aka completion site
• Equipment is assigned to crew according to task assigned
• Unused tools should be returned to the completion site
• Tools are returned to the van and stored securely
• Sweep the house for equipment and tools before fogging
• Van is refilled to operational capacity upon return to office

4. Air Duct Cleaning

• Registers are removed, marked for replacement, and scrubbed with biocide
• Removal, repainting, and replacement of registers is sometimes advisable
• Unit(s) are run separately to assess accuracy of air duct run map
• Negative pressure is placed on the A/C system only after it is off
• Pressure causes a vacuum which we contain in HEPA filters on the negative air machine
• Negative air machines are attached to the plenum of the A/C units near the blower by cutting
  and attaching suction hoses to the unit
• Containment is erected over the blower to insure no contamination, spills, or paint reaches
  the coils or blower
• Units inaccessible at the plenum are reached through applying negative pressure
  to the vents themselves
• Debris is brushed into the HEPA filter with manual brooms, drill brushes,
  compressed air, or combinations
• Duct(s), plenum(s), and return air(s) are fogged with biocide for a duration of 5+ seconds
• Sealant is applied 30+ minutes after biocide dries to duct(s), plenum(s), and return air(s)
• Typically we utilizes Microband as our biocide for fogging air ducts and washing registers
• Fosters 4051 Anti-Fungal paint is used in our paint guns for sealing the plenum(s),
  duct(s), and run(s)
• Registers are returned to the vents after treatment and drying
• Containment is removed from the A/C system with the negative air machine hose
• Plenums are resealed with an aluminum patch, commercial strength tape, and air sealing glue which is painted over the patch
• Units are run and checked for air leaks to insure safe operation
• Light cleanup is used to remove any debris from manipulation of tools and covers from the work area
• Fogging the structure is an optional service that takes place after job is completed
• Customers must be alerted to the safest time to reenter the structure which usually is 3+ hours after the administering of any biocide
  

5. What are we trying to accomplish?

• We want to clean and protect the A/C unit from the effects of mold, dust, and dander which will greatly improve air quality in the living and working environment
• And above all we want to help people in their time of need