Como as máscaras de gás filtram o ar que respiramos
B2 Portuguese listening practice · Brazilian Portuguese · Curated for upper-intermediate learners
About this clip
A 4:31 video in Portuguese at B2 level, suitable for upper-intermediate learners. The speech is at a natural pace around 167 words per minute, rated 4.1/5, medium listening difficulty by Reelang’s algorithm.
What this clip covers:
- ▸Science - Discoveries, experiments, and how the world works.
- ▸Health & Wellness - Fitness, mental health, nutrition, sleep, and self-care.
- ▸Nature & Environment - The natural world, climate, and sustainability.
- ▸Technology - Tech, gadgets, software, AI, and the digital world.
From Seja curioso — TED-Ed↗ on YouTube.Watch original→
Vocabulary frequency
How common is the vocabulary in this B2 Portuguese listening practice listening practice?
80.4%
of words are in the top 2,000 most common Portuguese words
Based on this reel’s transcript, most of the vocabulary is high-frequency, everyday Portuguese.
General Portuguese frequency
73.8%
Top 1,000
80.4%
Top 2,000
94.4%
Top 5,000
Spoken Portuguese frequency
86.5%
Top 1,000
95.8%
Top 2,000
100%
Top 5,000
👄 Conversational vocabulary
This reel’s words appear more often in subtitle-based spoken-Portuguese data than in general usage, so it may feel closer to everyday conversation.
Words above this video’s level
Quick glosses for vocabulary that goes beyond this video’s B2 level.
ozônio
3×
Rare / outside top 5,000
ozone
polipropileno
2×
Rare / outside top 5,000
polypropylene
purificador
2×
Rare / outside top 5,000
purifier
colmeia preta
1×
structure resembling a black honeycomb
Source: wordfreq 3.1.1 (general) · SUBTLEX-PT-BR 2012 (spoken). Buckets approximate; exact ranks not stored.
Explore Brazilian Portuguese Comprehensible Input on Reelang
Open Portuguese hub →By skill level
By accent / dialect