CHAPTER 6: Underwriters Laboratories Inc. UL2034

What Levels of CO Cause an Alarm?

Underwriters Laboratories Inc. UL2034 defines three specific alarm points by which all residential CO Alarms must alarm. They are measured in parts per million (ppm) of CO over time (in minutes).

UL2034 Required Alarm Points:

If the alarm is exposed to 400 ppm of CO, IT MUST ALARM BETWEEN 4 and 15 MINUTES

If the alarm is exposed to 150 ppm of CO, IT MUST ALARM BETWEEN 10 and 50 MINUTES.

If the alarm is exposed to 70 ppm of CO, IT MUST ALARM BETWEEN 60 and 240 MINUTES.

IMPORTANT!

CO Alarms are designed to alarm before there is an immediate life threat. Since you cannot see or smell CO, never assume it’s not present.

An exposure to 100 ppm of CO for 20 minutes may not affect average, healthy adults, but after 4 hours the same level may cause headaches.

An exposure to 400 ppm of CO may cause headaches in average, healthy adults after 35 minutes, but can cause death after 2 hours.

IMPORTANT!

This CO Alarm measures exposure to CO over time. It alarms if CO levels are extremely high in a short period of time, or if CO levels reach a certain minimum over a long period of time. The CO Alarm generally sounds an alarm before the onset of symptoms in average, healthy adults.

Why is this important? Because you need to be warned of a potential CO problem while you can still react in time. In many reported cases of CO exposure, victims may be aware that they are not feeling well, but become disoriented and can no longer react well enough to exit the building or get help. Also, young children and pets may be the first affected. The average healthy adult might not feel any symptoms when the CO Alarm alarms. However, people with cardiac or respiratory problems, infants, unborn babies, pregnant mothers, or elderly people can be more quickly and severely affected by CO. If you experience even mild symptoms of CO poisoning, consult your doctor immediately!

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First Alert MODEL FCD3N user manual Underwriters Laboratories Inc. UL2034, What Levels of CO Cause an Alarm?

MODEL FCD3N specifications

First Alert MODEL FCD3N is a versatile and highly effective fire extinguisher that has garnered attention for its innovative features and reliable performance. It is specifically designed for home use, making it an essential tool for fire safety.

One of the standout features of the FCD3N is its multi-purpose capability. This extinguisher is rated as a Class B and C type, which means it can effectively combat flammable liquids and electrical fires. This versatility ensures that homeowners are prepared to deal with a wide range of potential fire hazards, from kitchen grease fires to electrical equipment malfunctions.

The FCD3N incorporates an easy-to-use design, featuring a simple pull-pin mechanism that ensures users can quickly access the extinguisher in an emergency. The lightweight construction allows for effortless handling, making it suitable for individuals of all ages. Additionally, the bright red color of the extinguisher makes it easily identifiable in case of an emergency.

One of the key technologies utilized in the FCD3N is its durable plastic cylinder, which is rust and impact-resistant. This construction allows the extinguisher to be placed in various environments without the risk of corroding or degrading over time. The FCD3N also features a pressure gauge, allowing users to easily monitor its readiness for use. This is a crucial feature, as it ensures the extinguisher is in optimal condition when it is needed most.

The FCD3N is designed with user-friendly instructions printed directly on the unit, ensuring that even those who may not be familiar with extinguisher usage can understand how to operate it effectively under stress. The quick-reference labeling helps users recall the steps necessary to operate the extinguisher, maximizing its effectiveness in a crisis.

Another notable characteristic of the First Alert MODEL FCD3N is its compact size, which makes it convenient for storage in various locations around the home, including kitchens, garages, and near electrical appliances. This ease of access significantly increases the likelihood of timely use when facing a fire emergency.

In summary, the First Alert MODEL FCD3N is a robust and user-friendly fire extinction solution suitable for any home. With its multi-purpose rating, durable construction, easy operation, and clear instructions, this fire extinguisher is an essential safety device that offers peace of mind to homeowners. Investing in the FCD3N ensures that families are prepared to act swiftly in the event of a fire, safeguarding lives and property alike.