Life & fun · alternatives · 2026
24 alternatives to I'm 66 and created a negative-pressure dental clinic to combat Covid19
Hello everyone, My son loves Hacker News, so I am using his account. I love innovation and technology. With the restrictions due to Coronavirus from practicing in my clinic. I created a system that replaces the air in my office in 20 seconds. Those vacuums are also filled with UV-rods inside to kill any viruses. The air is release below the office in a 2-3 foot basement, which is also filled with UV rods. https://youtu.be/UfYt1w156QA https://youtu.be/UpO8WXOlgcQ (side-by-side) Given how much my son enjoys Hacker News I thought you would all enjoy it. Here are…
A dentist created a negative-pressure air filtration system for dental clinics to reduce airborne virus transmission during COVID-19. The system replaces office air in 20 seconds through UV-equipped vacuums that… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I'm 66 and created a negative-pressure dental clinic to combat Covid19 launched in 2020; newer entries below may have overtaken it.
- 1
Browse or create your own Covid-19 stock photos for free
2020 · icons8.com · its alternatives →
- 2
UVMask▲153Real-time UV-C filtration & sterilization face mask
2020 · indiegogo.com · its alternatives →
- 3
#Masks4All▲193Wear a homemade mask to slow the spread of COVID-19
2020 · masks4all.co · its alternatives →
- 4MT
Hello HN, Almost 15 years into being a (rather quiet) user of HN, I am thrilled to write my first Show HN post! Early in the pandemic, we looked to devise a system that would drastically reduce the risk of spreading Covid-19 when people gathered in a room. The system would need to disinfect the air rapidly to keep the concentration of virions in the space low enough so the risk of cross infection would be drastically cut [1]. It became clear that an effective system would need to draw air away from the breathing space so that the exhaled air from an infected individual would not impinge upon…
2022 · its alternatives →
- 5
What are the best masks to protect you from Covid-19? We're testing surgical masks, non-medical 3 ply face masks, N95 masks, KN95 masks, KF94 masks, and cloth masks.
2022 · armbrustusa.com · its alternatives →
- 6
Respiray▲78Wearable air purifier that kills viruses with UV technology
2021 · respiray.com · its alternatives →
- 7
Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (https://www.pi-a.io) which developed Lungy (https://www.lungy.app). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU. My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were…
2023 · lungy.app · its alternatives →
- 8
- 9
SaaS for COVID▲287A directory of discounts on popular SaaS companies
2020 · saasforcovid.com · its alternatives →
- 10
Illustrated safety instructions printed on stickable frames
2020 · covid.mixtiles.com · its alternatives →
- 11
Learn how you can help fight coronavirus - using math!🤓
2020 · flattenthecurve.herokuapp.com · its alternatives →
- 12
Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the design process: I used CadQuery, a Python library for creating parametric 3D models. I didn't know tools like this existed and highly recommend it if you can program; it turned out to be more convenient than manually iterating on prototypes in a GUI. The project is open source and the post explains the full build. Happy to answer any questions.
2025 · lepekhin.com · its alternatives →
- 13
- 14
Free set of COVID-19 design materials u can edit on the fly
2020 · artify.co · its alternatives →
- 15
- 16
A coronavirus playbook for startups
2020 · get.almanac.io · its alternatives →
- 17
Squair▲162I built Squair because my phone was giving me anxiety - and it was also the only thing in my pocket when anxiety hit. The problem: 4 cups of coffee just to focus. Then the anxiety kicks in. Chest tight. Racing thoughts. Scrolling reels to "calm down" made it worse. I Googled "anxiety relief" at 2am and found box breathing — same technique Navy SEALs use in combat. First time I tried it, I felt the difference within 2 minutes. No crash. No pills. Just breathing. So I built an app around it. 6 months. Solo dev with a full-time job. 112 builds. 2 App Store rejections. Finally live. What it…
Jan 2026 · squair.app · its alternatives →
- 18
Real-time resource library for small business owners.
2020 · honeybook.com · its alternatives →
- 19
Fight against COVID-19 with your DNA data
2020 · genomelink.io · its alternatives →
- 20
Operation Masks▲121A non-profit group of entrepreneurs to fight against COVID19
2020 · operationmasks.org · its alternatives →
- 21
Run coronavirus company-wide check-ups via Slack. Free.
2020 · standuply.com · its alternatives →
- 22
Commercial cleaning for offices, medical clinics, and dental practices nationwide. Vetted crews, dedicated account manager, online booking. Free quote.
2020 · covidinvaders.com · its alternatives →
- 23
Free kid friendly book on coronavirus
2020 · akidsbookabout.com · its alternatives →
- 24
Visualize how dangerous the exponential growth of COVID19 is
2020 · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →