An ambulance company doesn't issue public data about a 50% spike in emergency calls unless the number is real and the trend is continuing. A report this week from KKTV cited American Medical Response — one of the largest emergency medical transport providers operating along the Front Range — flagging exactly that: respiratory calls tied directly to wildfire smoke have surged by half compared to baseline. That's not a public relations release. That's a dispatch log problem.

Colorado has always had fire seasons, but the combination of prolonged drought cycles, earlier snowmelt, and an expanding wildland-urban interface means the smoke isn't just coming from far away anymore. Residents in Colorado Springs, Pueblo, and communities along the I-25 corridor are breathing air that emergency dispatchers are now tracking as a medical variable.

What's actually changing

The 50% call increase tells you something specific: people who thought they could manage exposure at home are losing that bet. Most of those callers are not otherwise critically ill. They're households that didn't have a respiratory plan and found out during a smoke event that improvising doesn't work.

Fine particulate matter — the PM2.5 fraction that wildfire smoke loads into the air — penetrates standard HVAC filters, passes through cloth masks, and accumulates in closed homes faster than most people expect. Colorado's elevation compounds this. At altitude, your respiratory system is already working harder at baseline. Add smoke, and the physiological margin shrinks faster than it would at sea level.

The Colorado Department of Public Health and Environment issues Air Quality Index alerts through its CDPHE AirNow portal, but most households don't have a monitoring habit or an action threshold tied to those alerts. They notice the sky looks orange and open a window to "check," which is the opposite of what helps.

What we'd actually do

Check your furnace filter rating and replace it before the next smoke event, not during it. A MERV-13 filter — available at most hardware stores for under $30 — captures a meaningful fraction of the fine particles a standard MERV-8 filter passes. It won't make your home perfectly clean, but it reduces indoor accumulation during multi-day smoke events. If your HVAC system is older and can't handle the increased resistance of a higher-rated filter, a box fan with a MERV-13 filter taped to the intake is a functional workaround documented by researchers at the University of Michigan's air quality lab.

Buy one air purifier with a true HEPA filter and know exactly which room it goes in. Not five. Not for the whole house. One unit for the room where your household sleeps. A single room where you've concentrated clean air is more effective than diluting one underpowered machine across an open floor plan. Units in the 200-400 square foot CADR range run $80-$150 and are widely available. The bedroom matters more than the living room because that's where you spend eight continuous hours.

Set a specific AQI number as your household action threshold — and write it down. Colorado's CDPHE AirNow portal shows real-time AQI by county. An AQI above 150 (the "unhealthy" threshold) is the point where sensitive groups — children, elderly adults, anyone with asthma or COPD — should be indoors with filtration running. Above 200, that applies to everyone. Most households have no written threshold. Pick one this week, tell everyone in your home what it means, and bookmark the CDPHE portal on your phone.

If anyone in your household uses a rescue inhaler, verify the prescription is current and you have at least one refill on hand. AMR's data suggests people are ending up in ambulances partly because they ran out of medication or didn't fill a lapsed prescription before smoke arrived. Wildfire smoke events in Colorado can last days to weeks. A pharmacy run on day three of an unhealthy air event is a pharmacy run you don't want to make.

The bigger picture

A 50% spike in respiratory emergency calls is not a reason to relocate or build a bunker. It's a reason to spend an afternoon on a few low-cost, specific actions. Colorado's fire seasons have shifted, and the smoke risk is now a recurring feature of summer life along the Front Range — not an anomaly. Households that treat it as a predictable hazard and prep accordingly will be fine. The goal isn't to never be exposed to smoke. It's to never be caught without a plan when the AQI climbs.

Durability looks like a MERV-13 filter, a HEPA unit in the bedroom, and a number written on a notepad. That's the whole job this week.