This is a Sample of an Installation Certificate issued upon Completion

June 26, 2020


1234 Any Street
SW Florida

Dear New Owner,
See Certificate of Installation below:

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Certificate of Radon System Installation
Daisy Ductless Premium Engineered Radon Mitigation / Fresh Air System


WHAT HAS BEEN DONE: A Premium Daisy Ductless Plug ‘n Play portable ventilator /  fresh air system has been installed to mitigate radon and to meet the Florida Building Code, all current ASHRAE Ventilation Standards, the International Building Code and the USEPA air intake filter recommendations. This Plug ‘n Play installation is designed/engineered/installed to be and is exempt from all permitting. Occasionally a 120 volt outlet must be modified in which case the building’s electrical work and only the electrical work is required to be permitted and inspected. In Florida, there is no provision for any expert to inspect and approve or disapprove any radon mitigation system installation.

The State of Florida does not train, test, or license any building official to perform inspections of radon mitigation systems. For a proper installation, you must rely completely upon the integrity of your installer or hire a third party to ensure that the radon mitigation system has been properly designed and installed and that it will continue to operate reliably beyond the two day post mitigation clearance test and will not cause increases in indoor relative humidity that will result in mold damage and moldy odors.

Why is the existence of a permit and inspection dangerously misleading? Contrary to what some would have you to believe, existence of a permit does not mean that the radon mitigation installation has been inspected and approved by anyone. No building official trained, tested and licensed by the State of Florida to perform radon mitigation system inspections or anyone else has inspected and approved any radon mitigation system installation. You may have a radon mitigation system that will soon fail, cause serious mold and high humidity problems, may require frequent service, may have a warning system that will provide faulty or misleading information that the system is working when in fact it is not, and no one will tell you that your system design or installation is defective and/or prone to failure or that it is likely to stop reducing radon and/or to increase indoor relative humidity and to create serious new mold destruction and odor problems. Without warning.

It is important that you be aware that permitting and inspection has nothing to do with the installation of the radon system design, installation, workmanship, or compliance with the Florida Radon Code, ASHRAE Standards, IBC, ASTM, AARST-NRPP, or any of the US EPA’s Current Radon Standards of Practice

The Daisy Ductless system installed in your home is complete, fully operational and functioning as intended.

The system will easily maintain an annual average radon level of less than 4 picoCuries per liter, the US EPA Action Level.

  • The radon level is easily adjustable within the performance limitations of the system
  • The system includes a fully automatic system humidity controller for automatic mold prevention.

WHAT THE SYSTEM INCLUDES: The system includes the following three SmartVentilation features to provide an especially healthy and comfortable indoor environment for  your family:

  1. THE INTAKE-AIR-CLEANING FILTER: All air delivered into the home passes through a MERV 14-15 filter that exceeds all current residential codes and standards including the recent US EPA recommendation of MERV 13 filtration. So long as the home is maintained in closed house conditions, the indoor air will present an exceptionally healthy and comfortable environment for everyone, including asthma and allergy sensitive individuals. Filter service life is 18-24 months. For the best result, all fresh air should enter the home through this MERV 14-15 filter.  In most cases, opening windows and doors during Daisy Ductless operation will impair indoor air quality.

The Type III MERV 14-15 filter removes the following:

    1. Viruses and bacteria: a broad range of illnesses
    2. Smoke, dust, dirt: Respiratory distress
    3. PM2.5, other microparticulate and soot: Believed to delay onset of Alzheimer’s
    4. Red tide and blue-green algae neurotoxins: Believed to cause severe respiratory/eye/skin irritation and increasingly believed to cause dementia Lou Gehrig disease.
    5. Pollen, mold spores: Allergies and Asthma
    6. Airborne agricultural chemical particles (aerosols) respiratory distress/unknown
  1. THE INDOOR HUMIDITY / MOLD PREVENTION CONTROLLER: A precision electronic humidity controller monitors indoor relative humidity minute-by-minute. It controls system operation to ensure that Daisy operation does not increase indoor relative humidity to the point to overload air conditioner capacity thereby preventing mold and/or moldy odors issues from radon system operation.
  2. THE RADON LEVEL CONTROL: A radon level adjustment (performed by jeweler’s screwdriver) will allow you to adjust air delivery rate/system performance to deliver the preferred annual average radon level within the system performance limitations and below the USEPA Action Level of 4.0 picoCuries per liter. Air delivery may be adjusted within a range of 7 and 70 cubic feet per minute. Often radon may be successfully mitigated with only a constant flow 15-20 cubic feet per minute of outdoor air which will add very little stress to existing air conditioner operation which moves 800 to 1600 cubic feet per minute during normal operation.

BENEFITS: The Daisy Ductless is an engineered premium Plug ‘n Play fresh air system retrofit that pressurizes the breathing zone and provides the fresh air that was not provided for when the home was constructed. Daisy operation easily provides precise and correct quantities of fresh air to pressurize energy efficient homes without over or under-ventilating


  1. Blocked entry of outdoor origin asthma and allergy triggers
  2. Improved cognitive function by lowering indoor exposure to CO2 concentrations above 600 parts per million
  3. sleep
  4. Physical comfort
  5. “Indoor Sensory Freshness”


  1. radon levels
  2. exposure to PM2.5
  3. carbon dioxide exposure from occupant respiration,
  4. cooking and “housatosis” odors
  5. volatile organic compounds including VOCs, acrolein
  6. new construction odors

THE DESIGN: The Daisy system is designed to be low voltage Plug ‘n Play for functionality, ease of installation and service. Service is accomplished by quick, simple module exchange without tools, except for a small straight slot screwdriver that is required only for exchange of the humidity / temperature controller. The Daisy was engineered to be so simple that all service may be easily performed within a very few minutes, without tools and by a handy person even without prior experience. All parts soon readily available online.

CODE AND STANDARDS: A mechanical ventilation system is now required in all new construction by Section 401.2 of the Florida Building Code and ASHRAE Ventilation Standards 62.2-2016, 62.2-2017, and the IBC. (See exemption below) This Engineered Daisy Ductless installation meets all such requirements. Further, the Daisy Ductless incorporates a MERV 14-15 filter cartridge that is conveniently serviceable from indoors as required by ASHRAE Standard 62.2-2019.

MANDATORY AIRTIGHTNESS TESTING: Since July 1, 2016, all completed Florida homes are required to be tested for air tightness by a blower door testing procedure. In almost every case, well-constructed homes require the installation of a mechanical ventilation system. However, if testing shows that the home is less well-built and is much less airtight and less energy-efficient, the home is exempt from mandatory mechanical ventilation. When enacted, there was health-related opposition to this unwanted exemption within the building science community. The building industry’s opposition to mechanical ventilation focused on the potential of mechanical ventilation to create moisture and mold issues in Florida’s hot, humid climate and to increase costs.

EPA FILTER RECOMMENDATION: The US Environmental Protection Agency now advises that all outdoor ventilation air should be filtered through a MERV 13 filter. The MERV 14-15 filter installed within the Daisy module easily surpasses such requirement. The cleanliness of the air delivered by the Daisy is closer to that delivered into a hospital operating room.

FILTER MAINTENANCE: Daisy filter service life is 18-24 months. Filter exchange may be performed in seconds from indoors or out of doors. In operation, the Daisy Type III filter will remove and become loaded with radioactive particles (PM2.5) from out of doors. As an alternative to replacement, the Type III filter may be immediately cleaned/renewed in a dishwasher with the air intake opening down. Always wear gloves. Otherwise seal used (radioactive) filters in a plastic bag, dispose of promptly and wash hands thoroughly.

THE ONLY MOVING PART: The Daisy’s motorized impeller is designed and specially manufactured to SmartVentilation specifications for precisely correct variable speed performance as well as moisture and salt spray corrosion resistance. It has a Mean Time Between Failure MTBF of 50,000 hours when operated at maximum speed. In most cases it will operate at much lower speeds and should show a MTBF of well over 100,000 hours.

RADON LEVEL ADJUSTMENT: Average radon level is easily adjusted by a jeweler’s screwdriver inserted into the small hole to the right of the sensor. Turn ¼ turn clockwise to reduce average radon levels and ¼ turn counterclockwise to reduce ventilation. 48 hours should be allowed between each ¼ turn adjustment to allow time for radon reduction effects to appear. An easy-to-use SmartVentilation plug-in ammeter is available to aid in quickly and very precisely adjusting Daisy performance during radon level adjustments. This meter will reveal approximate airflow in cubic feet per minute from about 7 to 70 CFM. Soon available online. 

MOLD PREVENTION is assured by operation of the high accuracy digital electronic humidity / temperature controller factory set to prevent indoor relative humidity from rising above 60% which is generally accepted as the point above which mold may begin to grow. This high accuracy electronic controller may be push-button re-programmed (not recommended unless performed by our expert technicians) to operate the Daisy to maintain any preferred indoor relative humidity and temperature band regardless of outdoor weather extremes. Details will soon appear at

FIRE PROTECTION: Where required, a Daisy option includes installation of a fire protective component consisting of a fire-code-compliant intumescent belt which will block off all intake air and water in the event of exposure to heat above 324 degrees F.

PROPORTIONAL CONTROL OPTIONS: The Daisy system is designed to be optionally operated by our proportional smart controllers with a 0-10 control voltage output, such as an indoor CO2 controller, a pressure/micro pressure controller, a dedicated proportional humidity controller.

Further, with the addition of the optional SmartVentilation CO2 Controller it will be capable of maintaining an indoor carbon dioxide level of around 600 parts per million which is the recognized level to maintain optimized cognitive function and sleep.

Importantly, so long as all doors and windows are kept closed most all of the time, the Daisy Module operation will nearly eliminate entry of outdoor airborne particles such as PM2.5 and including the newest threat of Sahara Desert dust/sand into the home’s breathing zone.

PERMITTING EXEMPTION: The Daisy system was successfully engineered to be exempt from permitting. Developing and engineering the permit-exempt technology took us six years. However, a permit may be required in the rare event that modifications must be made to the 120vac outlet into which the SmartVentilation 12vdc power pack is plugged.


Parts, materials, labor, system performance. Three years from date of installation.

PRECAUTION: The Daisy system incorporates a powerful and reliable mold prevention feature, however, if and in the event of the appearance of mold, mold discoloration or moldy odors, you must contact us immediately. 239-571-2227. Immediately upon notification, our experts will appear and perform an inspection to determine details and causation of the issues as may be caused by operation of the Daisy Ductless Fresh Air Module. Improper adjustment/tampering of the humidity controller can result in high humidity and the appearance of mold.

SYSTEM  MONITORING: It is very highly recommended that the owner acquire an electronic radon meter with an audible alarm (example) and operate it 24/7/365 to assure proper operation / adjustment of the Daisy Ductless radon mitigation functionality. Research conducted by the scientists at the Florida Solar Energy Century has revealed an extraordinarily high failure rate of mechanical ventilation systems in Florida. Of the 21 systems they investigated, only a single system performed as intended. Should the Daisy or any radon system fail to reduce radon, everyone should know it immediately. It is often reported by HVAC technicians that most of the mechanical ventilation radon mitigation systems that they see have failed. Often because of homemade filters that have not been serviced every 60-90 days or that have been turned off by owners to prevent mold problems that appeared soon after installation.

Recommended radon meters (no battery operation 24/7/365) will soon be available at 

SmartVentilation performs repairs and upgrades on any and all fresh air systems. Call us if you would you like to know more. 

For Additional Information and Updates to all radon systems, Please SEE:

An online store is under development at

The medical cost of treating lung cancer is estimated to be around $500.000.00.

A radon mitigation system could be the best investment you could make in your entire life.

Wayne Dean
SmartVentilation, Inc.
239 571-2227