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Is 70 Humidity High Outside?

Is 70 percent humidity high outside? Anything that surpasses the indoor relative humidity level, which is thought to be between 30 and 55% is high. If it is lower than that, it is too low and it can make your indoor living spaces too uncomfortable.

But is 70% humidity high outside? Indoors, 70 is too high and uncomfortable. Outside, the level of discomfort that you can get from 70% humidity depends on the temperature. High temperature in the air holds more dampness and becomes very uncomfortable.

When talking about humidity, there is something that we call dew point. Dew point is the main determinant of comfort when it comes to humidity, temperature, and the lower it is the better.

In simpler terms, as long as the dew point stays below 70, you will be comfortable. Since dew point is the temperature that the air needs to be cooled down to to attain 100% relative humidity, lower dew point means lower relative humidity, and more comfort for you.

What is relative humidity?

Relative humidity, always expressed in percentage, is the amount of water vapor that the air can hold at a given temperature.

If the air has the amount of water that it can hold at that temperature, the relative humidity is 100%. Also, if the water vapor is half what the air can hold at that temperature, so we would say relative humidity is 50% and so forth.

Thus, if we say the best relative humidity indoors is 35 percent, it means that the air can hold 35 percent water vapor at room temperature.

70 percent humidity in house

The relative indoor humidity is thought to be between 30 and 55%. If it is higher than that, it will lead to the proliferation of dust mites, mold and other indoor allergens.

It can also cause damage to your books, furniture, paintings and clothing. Mold and mildew will start growing in the dark and damp spots.

If you live in a high humidity place such as Seattle, you will want to keep an eye on your hygrometer. You can switch on the dehumidifier to lower the indoor humidity level.

70% humidity outdoors

If the humidity outdoors is too high, a breeze can help. If there is wind, it will help to lower the humidity by a good margin. Bearing that in mind, we can say that 70% of RH in the outdoor is not too bad if there is air movement.

If you experience too high indoor humidity, you can buy the 50-pint Vacplus dehumidifier on amazon.com.

Also, such humidity level is not going to prevent you from breathing well. You can also engage in physical activity and exercise, but do not make it too rigorous.

In the same way that wind helps to lower the humidity outdoors, a fan can also help lower humidity slightly indoors. It creates air movement and the cooler air coming from the fan dispels some of the moisture.

But at the same time, it is best to invest in a dehumidifier such as the Frigidaire 70 Pint unit to help lower the RH in your home.

Is 80 relative humidity high?

80 percent relative humidity is high whether it is indoors or outdoors. It means that the water vapor content in the air is at 80 percent of what it can hold at that temperature.

If this is your indoor humidity, you will not be able to sleep or stay in that house.

80 percent relative humidity is also too heavy for pets, and to some extent, even to your indoor plants. It will cause the growth of mold and it can harm your clothing and other items.

Is 90 humidity bad?

If 80 RH is bad, you can bet that 90 percent RH is even worse. Let’s just say that anything that is above the recommended indoor humidity level is really bad.

You can read our article on effects of high humidity on the body, we saw that there are serious effects on your health.

Can you breathe 90% humidity?

When the humidity is too high, there are fewer molecules of oxygen in the air. Thus, high water content in the air is going to hamper your ability to breathe properly.

Thus, if you engage in any type of physical exercise or activity in a humidity of 90, you will find it hard to breathe. If you have asthma, you will find it harder to inhale.

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If you have a cold, such humid air can make your nose runny. Of course, high humidity will also cause excessive sweating and discomfort.

Conclusion for 70 percent humidity in house

Is 70 percent humidity high outside? If there is no wind and the temperature is high, then this is too high for you to engage in physical activity.

Indoors, this is way above the recommended RH of 55%. Thus, it can cause damage to your books, furniture, paintings and clothing.

It can also cause the growth of mold and mildew, which might in turn cause a musty smell in your room.

If you live in a humid city, invest in a good dehumidifier.

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