Boise AC: Cheap Units Drying Summer Enzymes?

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
May 21, 2026

The air in Boise in July can feel like stepping into a convection oven, especially indoors. But it’s not just the heat; it’s the dryness that really gets you. That parched feeling isn’t just uncomfortable; it can actually mess with how your body functions, specifically impacting your enzymes.

Enzymes are the unsung heroes of our bodies. They’re proteins that speed up chemical reactions, everything from digesting food to building DNA. They’re incredibly sensitive to their environment, and humidity plays a bigger role than you might think.

Think of an enzyme like a delicate flower. It needs the right amount of water to stay open and functional. Too little, and it wilts, unable to do its job. Too much, and it drowns.

The cheap AC units blasting away in many Boise homes and apartments, while offering a respite from the heat, often strip the air of its moisture, creating an environment that’s far from ideal for these crucial biological catalysts. This can lead to a cascade of issues, from digestive problems to fatigue.

So, what’s the connection between Boise’s dry air and your enzymes? And more importantly, what can you do about it?

Enzymes rely on a specific three-dimensional structure to function correctly. This structure is maintained by various forces, including hydrogen bonds. Water molecules play a crucial role in forming and stabilizing these hydrogen bonds. When the air is dry, enzymes can lose water molecules, causing their structure to change and their activity to decrease. This is called denaturation.

Imagine a lock and key. The enzyme is the lock, and the molecule it acts upon is the key. If the lock gets bent out of shape (denatured), the key won’t fit, and the reaction won’t happen.

The impact of this denaturation can be significant. For example, digestive enzymes like amylase (which breaks down carbohydrates) and protease (which breaks down proteins) become less effective. This can lead to bloating, indigestion, and nutrient malabsorption. Similarly, enzymes involved in energy production can be affected, leading to fatigue and decreased physical performance.

Now, let’s talk about those AC units. There are different types, and some are worse offenders than others when it comes to drying out the air.

  • Central AC systems: These are generally the most efficient at cooling an entire house, but they also tend to remove the most moisture. The cold coils condense water vapor, which is then drained away.
  • Window AC units: These are smaller and less powerful, but they still dehumidify the air as part of the cooling process. Cheaper models often lack humidity controls, meaning they run at full blast, regardless of the actual humidity level.
  • Evaporative coolers (Swamp coolers): These are more common in drier climates like Boise because they add moisture to the air. However, they’re only effective when the humidity is low to begin with. If the humidity is already high, they can make things even more uncomfortable.

The problem with many Boise rentals is the prevalence of older, inefficient window units. Landlords often opt for the cheapest option, which means tenants are stuck with a system that prioritizes cooling over comfort and health. These units can easily drop the humidity level in a room to below 30%, which is far too dry.

So, what can you do to combat the dry air and protect your enzymes? Here’s a Boise-specific guide:

  1. Humidifiers are your best friend. Invest in a good quality humidifier, especially for your bedroom. Look for one with a built-in humidistat, which will automatically adjust the humidity level to your desired setting. You can find a variety of humidifiers at local stores like Fred Meyer, Target, and Lowe’s. Aim for a humidity level between 40% and 60%.

  2. Hydrate, hydrate, hydrate. This seems obvious, but it’s crucial. Drink plenty of water throughout the day. Carry a reusable water bottle with you and refill it often. Consider adding electrolytes to your water, especially if you’re active or spending time outdoors. You can find electrolyte powders and tablets at most grocery stores and pharmacies in Boise.

  3. Eat water-rich foods. Certain fruits and vegetables have a high water content and can help you stay hydrated. Watermelon, cucumbers, strawberries, and spinach are all great choices. The Boise Co-op and the Capital City Public Market are excellent places to find fresh, local produce.

  4. Consider a whole-house humidifier. If you own your home, a whole-house humidifier can be a worthwhile investment. These systems are installed directly into your HVAC system and can maintain a consistent humidity level throughout your entire house. Contact local HVAC companies like Western Heating & Air Conditioning or Diamond Heating and Cooling to get a quote.

  5. Pay attention to your body. If you’re experiencing symptoms like dry skin, dry eyes, a scratchy throat, or digestive problems, it could be a sign that the air is too dry. Adjust your humidifier settings and increase your fluid intake accordingly.

  6. Be mindful of your AC usage. Don’t overcool your home. Set your thermostat to a comfortable temperature, but avoid blasting the AC all day and night. Consider using a programmable thermostat to automatically adjust the temperature when you’re not home.

  7. Houseplants can help. Plants release moisture into the air through transpiration. Adding a few houseplants to your home can help increase the humidity level. Snake plants, spider plants, and peace lilies are all good choices. You can find a wide selection of houseplants at local nurseries like Edwards Greenhouse and Franz Witte Nursery.

  8. Take shorter, cooler showers. Hot water can strip your skin of its natural oils, making it even drier. Opt for shorter, cooler showers to help retain moisture.

  9. Use a saline nasal spray. Dry air can irritate your nasal passages, making you more susceptible to infections. Use a saline nasal spray to keep your nasal passages moist. You can find saline nasal sprays at any pharmacy in Boise.

  10. Cook with steam. Steaming vegetables is a great way to retain their moisture and nutrients. It also adds moisture to the air in your kitchen.

A common mistake people make is assuming that if they’re not feeling thirsty, they’re adequately hydrated. Thirst is a late sign of dehydration. By the time you feel thirsty, your body is already starting to experience the effects of dehydration, including decreased enzyme activity.

Another pitfall is relying solely on humidifiers without addressing other factors like diet and hydration. A humidifier can help, but it’s not a magic bullet. You need to take a holistic approach to combat the effects of dry air.

Finally, many people underestimate the impact of even slightly dry air. They might think, “It’s not that bad,” but even a small decrease in humidity can have a noticeable effect on enzyme activity and overall health.

Living in Boise during the summer doesn’t have to mean suffering from the effects of dry air. By taking proactive steps to increase humidity, stay hydrated, and eat a healthy diet, you can protect your enzymes and maintain optimal health. Don’t let those cheap AC units win! Take control of your environment and prioritize your well-being. Your body will thank you for it.

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