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Smoke Alarms

Smoke Alarms

One of the most important pieces of fire safety equipment we have in our homes is the smoke detector. Here a few quick tips to make sure yours are ready to alert you in the event of a fire:

  • Test regularly, the U.S. Fire Administration (USFA) recommends that we test our smoke detectors monthly, to some that may seem excessive but it’s crucial that if there is a fire that our smoke detectors work properly.
  • Replace the batteries twice a year. A good rule of thumb is to replace the batteries in our smoke detectors every time we change the clocks for daylight savings (twice a year).
  • Some newer models have a sealed 10-year lithium battery that doesn’t need to be replaced. Although these cost a little more than the standard alarms, you’ll save money not buying replacement batteries and have the peace of mind knowing they will work when needed.
  • The value of interconnected alarms. Many homes have interconnected smoke detectors, meaning when one goes off they all go off. This can be a huge advantage, especially at night if something were to happen.
  • Smart detectors: Nest protect and First Alert One-Link are examples of connected smoke detectors that work with an app to alert you of activation even if you aren’t home. Nest Protect alarms also have some cool additional features like night light settings.



The LifeDoor Institute is the public safety division of LifeDoor, a firefighter-founded company dedicated to saving lives with awareness, education, and technology. LifeDoor’s products close bedroom doors in the event of a fire, preventing and slowing the spread of fires and deadly smoke, giving firefighters more time to save family members.



Tech Sector Giving Back: Seattle Area Firefighters Volunteer Manufacturing Services to Make Life-Saving Medical Device for Doctors to Help Fight the Coronavirus

Tech Sector Giving Back: Seattle Area Firefighters Volunteer Manufacturing Services to Make Life-Saving Medical Device for Doctors to Help Fight the Coronavirus

LifeDoor Founders Partner with University of Washington to Make and Donate Intubation Devices to Doctors


Seattle, Washington  – April 16, 2020 LifeDoor, the firefighter-founded technology company, today announces its newest device to protect first responders and medical professionals from the spread of COVID-19, the LifeBox. Created in partnership with the University of Washington, the LifeBox is a simple design based on a concept shared on the internet from Dr. Hsien Yung Lai in Taiwan. 

When the University of Washington’s COVID-19 Central Command reached out to LifeDoor, via the Everett Firefighter Association, LifeDoor’s Co-Founder Joel Sellinger answered the call. “They were looking for local businesses with manufacturing and design capabilities to tackle the issue of virus spread to caregivers during patient intubation. Intubation is a high-risk scenario for doctors and first responders because you’re close to the patient’s face. They needed a way to protect medical professionals, and we knew we had to help.”

Unconscious, intubation is a procedure where a patient is essentially temporarily paralyzed and a tube is inserted down their trachea attached to a ventilator. The machine breathes for them. Currently, during the procedure, doctors and first responders are easily contaminated. The new LifeBox is a clear box with access ports that covers the patient’s head and lets doctors work with less exposure.

Sellinger’s company, LifeDoor is known for its life-saving residential devices that close bedroom doors in the event of a house fire, to prevent the spread of smoke and flames. Their company, based in the Pacific Northwest, has been developing and selling door closing devices for over 2 years.

“We’re in the business of saving lives, both as firefighters, and as entrepreneurs. Making devices that help reduce exposure for first responders, doctors, and medical personnel during a pandemic was cause enough for LifeDoor to pause our normal entrepreneurial efforts and manufacturing and retool to save lives in a new kind of way,” says Sellinger. “So far, at least 77 doctors have died in Italy alone, from the Coronavirus. High risk procedures such as intubations have caused doctors, nurses, and others to be contaminated. This is why a device like what we are doing is essential to their health. We’re honored to help.”

“We are developing an open sourced design for the LifeBox, which will be available on our website https://lifedoor.io/pages/aerosol-boxes. LifeDoor will make and donate a limited number of boxes and will support others who want to fabricate. Our goal is to optimize the design and share it with others who can fabricate.  We already know of multiple parties across the country utilizing the design we’ve provided.”

To access the LifeDoor designs go to lifedoor.io

For other questions contact LifeDoor via email info@lifedoor.io To get a LifeBox, contact LifeDoor at info@lifedoor.io

About LifeDoor

LifeDoor is a firefighter-founded technology company dedicated to saving lives in the event of a fire. LifeDoor’s products close bedroom doors in the event of a fire, preventing and slowing the spread of fires and deadly smoke, giving people more time to escape and firefighters more time for rescue. To learn more, visit www.lifedoor.io

Is LifeDoor Safe To Use?

Is LifeDoor Safe To Use?

Is LifeDoor going to shut me in? 

One of the most frequently asked questions we get is related to the fear that LifeDoor is going to "lock" people in their rooms. Be assured, this is not what LifeDoor does. LifeDoor simply shuts the door, then disengages. That means that after the device shuts the door, the door can be easily opened as it would normally be. The LifeDoor unit does not provide any resistance or lock the door shut. 


What if I need to get out as the LifeDoor unit is closing the door?

If the LifeDoor unit detects the sound of an activated smoke alarm and starts to shut the door as someone is in the path of the door or standing nearby and wants to get out, the unit will not overpower you and you will be able to reopen the door even while it's in the act of closing.




Why LIfeDoor?

Today's fires are more toxic than ever. Synthetic materials in homes burn faster and create more dangerous fumes and smoke than at any time in history. If a fire breaks out while your family is sleeping or napping, they can be overwhelmed by fumes before they even wake up. The simple act of closing your door can save your life or that of someone you love. LifeDoor listens for your smoke alarm with its special microphone and proprietary listening algorithm, and when it hears it going off, it closes your door. This simple act buys you the precious time needed in many cases for the fire department to arrive to help you. 

This simple image illustrates the massive difference between the temperature of a room with the door open and the door shut during a fire. Where would you rather be?