3M™ Formaldehyde Monitor 3721+, 5 ea/Case

  • Part Number 3721+
  • 3M Product Number 3721+
  • 3M ID 7100251921
  • UPC 50638060432445

State of the Art Monitor Design.

Simple, cost-effective, and convenient.

Easy to use. Just clip the monitor to shirt lapel, collar, or pocket.

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  • State of the Art Monitor Design
  • Simple, cost-effective, and convenient
  • Easy to use. Just clip the monitor to shirt lapel, collar, or pocket
  • Unobtrusive. Monitors are small and lightweight and will not interfere with employee activities
  • Documentation for industrial hygienists and IH labs available upon request
  • A valid method for sampling and analysis of formaldehyde and 12 other aldehydes
  • Analysis is not included

The 3M™ Formaldehyde Monitor 3721+ is a cost-effective and convenient way to perform personal air sampling for formaldehyde and other aldehydes.

Knowing the specific contaminant and exposure levels is important to determine the appropriate respirator and cartridge for your work environment. This information will also help in estimating the life of selected 3M™ Cartridges. 3M™ Formaldehyde Monitor 3721+ uses diffusion, rather than a pump, to collect an air sample with an accuracy of +/-25% at a 95% confidence level for certain aldehydes found as workplace contaminants. It has fiberglass coated with 2,4-dinitrophenylhydrazine (DNPH) for easy collection of aldehydes and is typically used in health care, laboratories, and in the chemical, pulp/paper, foundry and textile industries. After following all instructions, send the monitor to be analyzed in the lab of your choice. This monitor has a 1-year shelf life from its production date.

Typical properties



Large Volume Order

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert. If this product is being purchased for use in firefighting duties, please review this Notice Regarding Fluorinated Organic Compounds.