view the rest of the comments
Ask Science
Ask a science question, get a science answer.
Community Rules
Rule 1: Be respectful and inclusive.
Treat others with respect, and maintain a positive atmosphere.
Rule 2: No harassment, hate speech, bigotry, or trolling.
Avoid any form of harassment, hate speech, bigotry, or offensive behavior.
Rule 3: Engage in constructive discussions.
Contribute to meaningful and constructive discussions that enhance scientific understanding.
Rule 4: No AI-generated answers.
Strictly prohibit the use of AI-generated answers. Providing answers generated by AI systems is not allowed and may result in a ban.
Rule 5: Follow guidelines and moderators' instructions.
Adhere to community guidelines and comply with instructions given by moderators.
Rule 6: Use appropriate language and tone.
Communicate using suitable language and maintain a professional and respectful tone.
Rule 7: Report violations.
Report any violations of the community rules to the moderators for appropriate action.
Rule 8: Foster a continuous learning environment.
Encourage a continuous learning environment where members can share knowledge and engage in scientific discussions.
Rule 9: Source required for answers.
Provide credible sources for answers. Failure to include a source may result in the removal of the answer to ensure information reliability.
By adhering to these rules, we create a welcoming and informative environment where science-related questions receive accurate and credible answers. Thank you for your cooperation in making the Ask Science community a valuable resource for scientific knowledge.
We retain the discretion to modify the rules as we deem necessary.
For portable air conditioners, many inexpensive units have only a single hose (hot air exhaust) rather than a dual hose (outside air intake and hot air exhaust) which is going to cause inefficiency (like, you're going to be pulling air from outside into the house by creating a pressure difference).
Definitely. Absolute scams. They deserve the "0 energy stars" ratings I've seen printed on their boxes.
My family bought one of those for one of my grandparents. On a 35degC day it was only able to cool the room by a few degrees and it was still humid inside.
Converting them into dual-hose systems would be so simple (almost free) to the manufacturer, but instead they rely on deceiving buyers with a promise of something that is not delivered.