Help library: Help library: Can I use my LG air purifier while cooking?

Can I use my LG air purifier while cooking?

Troubleshooting Air Purifiers 08/05/2026

<body >

<div class="content-service-view" itemtype="HowTo">
<p class="description">
We recommend turning off your air purifier while cooking. Grease and
moisture from cooking can build up on the filter, reducing its lifespan
and causing unpleasant odors. <br/>
After cooking, open the windows to ventilate the room before turning the
air purifier back on.
</p>

<h3 class="warn-tit">Caution</h3>

<li>
Do not place or use the air purifier directly next to a cooking area,
such as a gas stove or induction cooktop.
</li>
</ul>

<h2 class="tit mainName">
Why Should I Avoid Using the Air Purifier While Cooking?
</h2>

<h3 class="name">Shortens Filter Life and Causes Odors</h3>
<p class="text">
Odor particles, fine dust, grease, and moisture produced during
cooking can build up on the filter. <br/>This reduces the filter’s
performance, shortens its lifespan, and causes unpleasant odors when
you turn the air purifier back on.
</p>      </div>

<h3 class="name">Causes High Fine Dust Readings</h3>
<p class="text">
Grilling or frying food produces a large amount of fine dust, causing
the dust level displayed on the air purifier to rise quickly.<br/>
Running the air purifier alone in this situation causes excessive
contaminants to build up on the filter. <br/>Always open the windows
to ventilate the room first.
</p>      </div>

<h2 class="tit">
How to Ventilate and Use Your Air Purifier After Cooking
</h2>
<p>
Follow these steps to effectively remove cooking odors and fine dust,
and to use your air purifier properly.
</p>

<h3 class="name">Step 1. Turn Off the Air Purifier Before Cooking</h3>
<p class="text">
Before you start cooking, turn off the air purifier to prevent
contaminants from entering the unit.
</p>      </div>

<h3 class="name">Step 2. Open the Windows to Ventilate the Room</h3>
<p class="text">
While cooking or immediately after, open the windows and turn on the
kitchen exhaust fan or range hood to remove smoke and odors.
</p>      </div>

<h3 class="name">
Step 3. Close the Windows and Turn On the Air Purifier
</h3>
<p class="text">
After the room is thoroughly ventilated, close the windows and turn on
the air purifier to remove any remaining odors and fine dust.
</p>      </div>

<h3 class="name">Step 4. What to Do If the Issue Persists</h3>
<p class="text">
If the issue continues after following these steps, contact LG
Customer Support for further assistance.<br/>
(Note: A service fee may apply if your product is out of warranty.)
</p>      </div>

<h2 class="tit">Frequently Asked Questions (FAQ)</h2>

<span role="img" aria-label="Question">Q.</span> What should I do if
the filter smells after using the air purifier while cooking?
</dt>
<dd>

<span role="img" aria-label="Answer">A.</span> If the filter has
absorbed cooking odors, leave it in a well-ventilated, shaded area
to air out. If the odor does not go away, replace the filter with a
new genuine LG filter.
</dd>
</dl>
<dl>
<dt>

<span role="img" aria-label="Question">Q.</span> Should I turn off
the air purifier when making soup, even if there is little odor?
</dt>
<dd>

<span role="img" aria-label="Answer">A.</span> Yes. Making soup
releases a large amount of moisture, which can be absorbed by the
filter. Even if there is little odor, we recommend turning off the
air purifier and using the kitchen exhaust fan or range hood.
</dd>
</dl>
</div>
<p class="help-txt">
This guide is based on standard models. The settings menu may vary by
model.
</p>    </div>

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