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RADON411

MIDCVFRUN

MIDCVFRUN radon fan

Radon mitigation fan

  • Radon fan
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  • MIDCVFRUN publishes no specification sheet, manual or website we could read; each field says so
  • No maker performance table we could read; the EPA's installation rules instead
Tests that check it works

About this item

In our words; no MIDCVFRUN document we could read states its figures

The MIDCVFRUN radon fan carries the MIDCVFRUN trademark, which the USPTO registered on November 11, 2025 to Shenzhen Dongcheng Environmental Technology Co., Ltd. of Shenzhen, China, for ventilating exhaust fans and related goods. MIDCVFRUN publishes no specification sheet, manual or website we could read, and its retail listing copy is not used as a source here, so this page marks the fan's model number, pipe size, airflow and pressure figures, power rating, safety listing and warranty not stated by the maker and sets out the EPA's guidance instead.

What you get

MIDCVFRUN publishes no package contents for this fan in any document we could read, and its retail listing copy is not used as a source here, so what comes in the box is not stated by the maker on this page. Its registration lists fans and other ventilation goods but describes no kit. Check what arrives against the couplings and gauge your installer expects: the EPA's 1994 standards called for removable couplings or flexible connections at the fan, and the EPA's consumer guide calls for a warning device on every active system.

In the box and running costs

How it works

What it does and how

The suction, the airflow and the housing, then who has checked it

How it works

In our words, from the public record and the EPA

A radon fan is the one moving part of an active soil suction system. The EPA describes the vent fan, connected to the suction pipes, drawing radon gas from below the home and releasing it into the outdoor air while creating a negative pressure, or vacuum, beneath the slab, and says active subslab suction is the most common and usually the most reliable radon reduction method. The fan should never be turned off; the EPA says it must run continuously for the system to work correctly.

Pipe size is one part of choosing a fan; suction and airflow are the rest. The EPA's construction guide says the size and air movement capacity of the fan should be enough to keep the pressure beneath the slab lower than the pressure above it, and gives a general figure for new homes: a fan moving 100 cubic feet of air per minute at one inch of water column should be sufficient for most applications, and most contractors have found 90-watt in-line fans adequate for most homes. Makers that publish airflow at each static pressure let a mitigator check a fan against those needs; for this fan we found no such table.

The company behind the name is known from the USPTO. MIDCVFRUN, Reg. No. 8,022,051, belongs to Shenzhen Dongcheng Environmental Technology Co., Ltd., a limited company organized in China with an address on Matian Street in Guangming District, Shenzhen. Its registration covers ventilating exhaust fans, bathroom exhaust fans, ventilating louvers and other ventilation goods, with first use in commerce on March 1, 2024, and its application of March 24, 2025 described the specimen for ventilating exhaust fans as a screenshot of a radon fan at an online point of sale.

Beyond that record, MIDCVFRUN publishes nothing we could read: no website, manual, data sheet or rating label, and Radon411 does not use retail listing copy as a source. The fan's model number, motor type, pipe size, maximum static pressure, airflow, power draw, supply voltage, speed control, outdoor rating and airflow at pressure are therefore all not stated by the maker here. With no model name to go by, Radon411 calls this listing the MIDCVFRUN radon fan and covers a separate MIDCVFRUN listing, the MIDCVFRUN radon fan kit, on its own page. The EPA's 1994 Radon Mitigation Standards asked for vent fans designed or otherwise sealed to reduce the potential for leakage of soil gas from the fan housing, and for a fan on the exterior of a building to be rated for outdoor use or installed in a water tight protective housing; no MIDCVFRUN document we could read states either for this fan.

What the manufacturer says

MIDCVFRUN's own statements, attributed

  • MIDCVFRUN saysMIDCVFRUN's owner lists ventilating exhaust fans and bathroom exhaust fans among the goods its registered US trademark covers.
  • MIDCVFRUN saysMIDCVFRUN's owner describes the specimen in its trademark application for ventilating exhaust fans as a screenshot of a radon fan at an online point of sale.
  • MIDCVFRUN saysMIDCVFRUN's owner states a first use in commerce of March 1, 2024 for the goods its mark covers.

These are MIDCVFRUN's own statements, attributed to it. They are not our findings, and we have not tested this product ourselves.

Independent evidence

Who checks a device like this

C-NRPP's consumer evaluation covers electronic radon monitors, not mitigation fans, so it has no result for MIDCVFRUN radon fan. No document from its maker that we could read states a safety listing or performance certification, so none is shown here, and what shows whether any fan is working in your home is a radon test after it is installed.

Specifications

Specifications

No maker figures we could read; each field says so

Compare side by side

The maker's figures

Type
Mitigation fan
Motor
Not stated by the manufacturer
Pipe size
Not stated by the manufacturer
Max static pressure
Not stated by the manufacturer
Max airflow
Not stated by the manufacturer
Max power
Not stated by the manufacturer
Power supply
Not stated by the manufacturer
Speed control
Not stated by the manufacturer
Airflow at static pressure
Not stated by the manufacturer
Outdoor use
Not stated by the manufacturer
Warranty
Not stated by the manufacturer

What is in the box

MIDCVFRUN publishes no package contents for this fan in any document we could read, and its retail listing copy is not used as a source here, so what comes in the box is not stated by the maker on this page. Its registration lists fans and other ventilation goods but describes no kit. Check what arrives against the couplings and gauge your installer expects: the EPA's 1994 standards called for removable couplings or flexible connections at the fan, and the EPA's consumer guide calls for a warning device on every active system.

No warranty is stated in any MIDCVFRUN document we could read. The EPA notes that manufacturer warranties tend not to exceed five years, and it suggests asking for written operating and maintenance instructions and copies of any warranties when a system is installed.

What it costs to run

The fan runs continuously, so the cost is electricity every hour of the year. The EPA says systems that use fans are more effective in reducing radon levels but will slightly increase your electric bill. No MIDCVFRUN document we could read states the fan's power draw; the watts on its rating label and your utility rate give the yearly figure.

Upkeep is a look at the warning device on a regular basis and, in time, a new fan: the EPA says fans may last five years or more and may then need to be repaired or replaced, like a furnace or chimney that needs occasional maintenance. It also suggests retesting your home at least every two years to be sure radon levels remain low.

Fit and setup

Who it fits, and installation

The fit, then how a system goes in

Who it fits

Good fit if, and look elsewhere if

Good fit if

  • Your mitigator has chosen this fan and confirmed its pipe size, suction and airflow from its label or the seller's documents.
  • You are swapping a MIDCVFRUN fan for the same model and can match the old fan's rating label.
  • Your mitigator will judge the fan by the system's own suction reading and a radon test after installation, not by a published table.
  • You want the EPA's installation rules next to the fan: outside the living space, in a vertical pipe run, wired to local code, with a warning device and a label.

Look elsewhere if

  • You need a published performance table to size a fan before you buy; no MIDCVFRUN document we could read gives one for this fan.
  • You or your state want a UL or ETL listed fan; no MIDCVFRUN document we could read states a safety listing for this fan.
  • You want the maker's warranty in writing before you buy; no MIDCVFRUN document we could read states one.
  • You are setting up a first system yourself; the EPA recommends a qualified radon mitigation contractor, and some states require one for fan installation.

Installation

4 steps

  1. The EPA recommends that a qualified radon mitigation contractor fix your home, because lowering high radon levels requires specific technical knowledge and special skills, and it notes that many states require radon professionals to be licensed, certified or registered. Its construction guide adds that some states require that in-line fans for radon reduction be installed by a certified radon mitigation contractor. MIDCVFRUN publishes no installation instructions for this fan that we could read.
  2. The EPA's construction guide says the fan and all positively pressurized portions of the vent pipe should be located outside habitable space, so that a leak in the fan housing or at a vent-pipe joint cannot pump radon directly into the home. A fan cannot be inside the living space or in the crawlspace beneath the home; fans are most often located in attics or garages, unless there is living space above the garage; and the fan goes in a vertical run of the vent pipe, which keeps outdoor precipitation from accumulating in the fan housing. The EPA's consumer guide says common fan locations include unconditioned home and garage spaces, attics and the exterior of the home, and that a fan installed outside must meet local building codes for exterior use.
  3. Electrical connections of all active radon reduction systems must be installed according to local electrical codes, the EPA says. Its 1994 standards required a radon vent fan on the exterior of a building to be hard-wired into an electrical circuit and barred plugged fans outdoors, and they called for removable couplings or flexible connections, tightly secured to both the fan and the vent pipe, to make maintenance and replacement easier. No MIDCVFRUN document we could read states the fan's voltage, current or power, so read them from its rating label.
  4. Every active system needs a warning device to alert you if it stops working properly, the EPA says, placed where it can be seen or heard easily, and the system must be clearly labeled. Test within 30 days of installation, but no sooner than 24 hours after the system is running with the fan on; the EPA recommends a two- to seven-day measurement to check the system's effectiveness.

To find someone to design and install a system, see radon mitigation professionals, and for how a fan fits into one, how a radon fan works.

Compare

Compare with similar items

The same three rows for each, and the one difference that matters

Compare side by side

More radon fan models10

All radon fan models

Questions

Questions people ask

5 questions about the MIDCVFRUN radon fan, answered

Asked about the radon fan

Who is behind the MIDCVFRUN brand?

The USPTO registered the MIDCVFRUN trademark on November 11, 2025 (Reg. No. 8,022,051) to Shenzhen Dongcheng Environmental Technology Co., Ltd., of Guangming District, Shenzhen, China. The owner's application describes a radon fan as its specimen for ventilating exhaust fans. We found no MIDCVFRUN website, so the record is the only maker document behind this page.

What are the fan's pipe size, airflow, pressure and power figures?

Not stated by the maker. No MIDCVFRUN document we could read gives a pipe size, maximum static pressure, airflow, power draw or table of airflow at pressure for this fan, and its retail listing copy is not used as a source here. The EPA's construction guide gives a general figure for new homes, a fan moving 100 cubic feet of air per minute at one inch of water column, but the fan for your house is sized from measurements under your slab.

Is the fan UL or ETL listed, and is it rated for outdoor use?

Neither is stated by the maker in any document we could read. The EPA's consumer guide says a fan installed outside must meet local building codes for exterior use, and its 1994 standards required an exterior fan to be rated for outdoor use or installed in a water tight protective housing. Check the fan's own label for a listing mark and an outdoor rating.

Should a radon fan ever be switched off?

No. The EPA says the fan should never be turned off and must run continuously for the system to work correctly, and its construction guide says fans need an unswitched electrical junction box.

How do I check that the system works once it is installed?

Watch the warning device, usually a manometer, on a regular basis, as the EPA advises, and test: a post-mitigation test within 30 days of installation, then a retest at least every two years.

What to do next

Updated October 9, 2026