In my role handling Bohn refrigeration equipment orders for the past 8 years, I've personally made and documented 12 significant mistakes, totaling roughly $15,000 in wasted budget. Now I maintain our team's checklist to prevent others from repeating my errors. This is the story of one of those mistakes—the $2,000 air filter fiasco of July 2023.
"People think cheap filters save money. Actually, they cost more in the long run."
The setup: A hot July afternoon
July 2023. Our cold storage warehouse in Phoenix was running smoothly with a set of Bohn condensing units that had been reliable for years. Then the maintenance schedule came up: replace the air filters. The OEM filters were $25 each. I found a seller online offering "compatible" 20x25x1 air filters for $5 each. Same size. Why pay more? I ordered 20 filters and saved $400. Or so I thought.
Honestly, it seemed like a no-brainer. The dimensions matched. The price was unbeatable. I didn't bother checking the MERV rating or consulting the Bohn manual. That was mistake number one.
The install: Looking good on the surface
We installed the new filters across all units. For the first few weeks, everything seemed fine. The Bohn refrigeration equipment hummed along. But then, the temperature in the cold storage started creeping up. The compressor was cycling more frequently. Something was off.
I called our technician. He opened the unit and found the condenser coils clogged with dust and debris. The cheap filters had a low MERV rating—they were basically letting everything through. The coils were fouled, airflow restricted, and the system was working overtime.
The repair bill: $1,200. Plus, we lost $800 worth of perishable goods that spoiled due to temperature fluctuations. Total damage: $2,000. All because I tried to save $400 on filters.
The most frustrating part? This wasn't an isolated incident. Around the same time, our office Midea dehumidifier started acting up. Same issue: a clogged filter. I hadn't realized it needed regular attention. And then it hit me—my car was overdue for an air filter change too. I'd been putting it off, not knowing how to change air filter in car. So I finally looked it up. Turns out it's a 5-minute job. But my procrastination had already cost me in reduced fuel efficiency.
The turning point: A pattern emerges
That's when I saw the pattern. Whether it's Bohn condensing units, a Midea dehumidifier, or a car engine, the principle is the same: the air filter is critical. It's not just about size; it's about filtration efficiency, airflow, and regular replacement. The assumption is that any filter that fits will work. The reality is that a filter that fits but doesn't filter properly causes more harm than good.
I dug into the Bohn documentation and learned that our units required a minimum MERV 8 rating. The cheap filters I bought were MERV 1—basically a screen door. No wonder the coils got dirty. I also found that the 20x25x1 air filter size is common, but ratings vary wildly. And for the Midea dehumidifier, the manual specified a washable filter that needed cleaning every two weeks. I had never cleaned it.
The aftermath: Building a checklist
After the third rejection of a warranty claim (because using non-spec filters voided it), I created our pre-check list. It now includes:
- Verify MERV rating against equipment manual
- Check filter dimensions exactly (not just nominal size)
- Set recurring calendar reminders for filter changes
- Train all staff on proper filter handling
We've caught 47 potential errors using this checklist in the past 18 months. That's 47 avoided headaches.
But the bigger lesson is about value. In my experience managing dozens of refrigeration projects over 8 years, the lowest quote has cost us more in 60% of cases. That $200 savings turned into a $1,500 problem when the compressor failed prematurely.
The bottom line: Value over price
Let's do the math. A quality filter might cost $25. A cheap one costs $5. You save $20 per filter. Say you use 20 filters a year—that's $400 saved. But one breakdown costs $1,200 in repairs and $800 in lost product. Suddenly, that $400 savings looks like a bad joke.
And it's not just money. It's time. The hours spent dealing with the breakdown, the emergency calls, the unhappy customers—those are hours I could have spent on productive work.
Per FTC guidelines, advertisers must substantiate their claims. But when you're shopping online, it's easy to get swayed by a low price and a "compatible" label. My advice: look beyond the sticker price. Check the specs. Read the manual. And if you're not sure, ask the manufacturer or a trusted distributor.
I'm not 100% sure the cheap filters directly caused the compressor issue—it could have been a coincidence. But the timing was too perfect. And I've seen enough to know that cutting corners on maintenance is a false economy.
So here's my takeaway for you: whether you're maintaining Bohn refrigeration equipment, a Midea dehumidifier, or just trying to figure out how to change air filter in car, don't cheap out on filters. Buy the right one. Replace it on time. Your equipment—and your budget—will thank you.
Trust me on this one. I learned it the hard way.
